Questions Asked on
October 1, 2007

  1. Science (big idea of energy)

    What is the big idea of energy????? It says : for level 6: "Explained the reaction using the big idea of energy" what does it mean by the big idea of energy????

    asked by person
  2. Chemistry

    How many kilograms of chlorine are in 30kg of each of the following chlorofluorocarbons (CFC's)? CF2Cl2 -in kg's; CFCl3 -in kg's; C2F3Cl3 -in kg's?

    asked by leo
  3. CHEM

    A particular coal contains 2.55% sulfur by mass. When the coal is burned, it produces SO2 emissions which combine with rainwater to produce sulfuric acid. Determine how much sulfuric acid (in metric tons) is produced by the combustion of 1.1 metric ton of

    asked by DD
  4. chem

    Question: The American Dental Association recommends that an adult female should consume 3.0mg of fluoride (F-) per day to prevent tooth decay. If the fluoride is consumed as sodium fluoride (45.24% F), what amount of sodium fluoride contains the

    asked by leo
  5. Chemistry

    Zn+ 2HCl -> ZnCL2+h2 what volume of hydrogen at stp is produced when 2.5 of zinc react with an excess of hydrochloric acid

    asked by Tyneice
  6. chemistry

    how many oxygen atoms are in 1.60g of quartz - SiO2? how do you figure out atoms to grams and visa versa? the weight of 1 SiO2=60.0848g/mol. please help

    asked by leo
  7. Chemistry

    2 HCl (aq) + Ba (OH2) (aq) ----> BaCl2 + 2 H20 (l) deltaH = -118 kJ Calculate the heat when 100.0 mL of 0.500 M HCl is mixed with 300.0 mL of 0.100 M Ba(Oh2). Assuming that the temp. of both solutions was initially 25.0 degrees C and that the final mixture

    asked by Jake
  8. pre-calc

    a farmer wants to make a rectangular enclosure using a wall as one side and 120 m of fencing for the other three sides. a) express the area in terms of x and state the domain of the area function b)find the value of x that gives the greatest area. my

    asked by INEEDHELP!!!
  9. CHEM

    How do I work the following question? I found the amu of CaCO3=101.0872g/mol; 2HCL=72.92128g/mol; H2O=18.1582g/mol;CO2=44.0098g/mol; and, CaCl2=110.9834g/mol. You carefully weigh out 10.00g of powder and add it to 40.50g of solution. You notice bubbles as

    asked by d
  10. Economics

    As price falls along the elastic portion of a linear demand curve, _______ decrease while _______ increase. Answers. A. only price; quantity demanded , consumer surplus, and consumer expenditures B. consumer surplus and price; quantity demanded and

    asked by cymber
  11. CHEM

    A 5.00 g sample of Al pellets (specific heat = .89 J/g degrees c) and a 10.00 g sample of Fe pellets (specific heat = .45 J/g degrees c) are heated to 100.0 degrees C. The mixture of hot Fe and Al is then dropped into 97.3 g of water at 22.0 degrees C.

    asked by Charlie
  12. CHEM

    A 5.00 g sample of Al pellets (specific heat = .89 J/g degrees c) and a 10.00 g sample of Fe pellets (specific heat = .45 J/g degrees c) are heated to 100.0 degrees C. The mixture of hot Fe and Al is then dropped into 97.3 g of water at 22.0 degrees C.

    asked by Charlie
  13. science

    were doing simple machines and on my paper it shows a door knob What simple machine is that ( lever,wedge etc.) And my sec que it also shows scissors what simple machine is that?

    asked by elise
  14. mathematics 1

    At a party each person is to be served 1/4 of a pizza. how many people can be served from 8 pizzas?

    asked by Anonymous
  15. mathematics 1

    At a party each person is to be served 1/4 of a pizza. how many people can be served from 8 pizzas?

    asked by Anonymous
  16. Algebra

    Find two positive real numbers that differ by 1 and have a product of 1.

    asked by Lizzy
  17. Science-Chemistry

    A 5.00 g sample of Al pellets (specific heat = .89 J/g degrees c) and a 10.00 g sample of Fe pellets (specific heat = .45 J/g degrees c) are heated to 100.0 degrees C. The mixture of hot Fe and Al is then dropped into 97.3 g of water at 22.0 degrees C.

    asked by Niclas
  18. Managerial Economics

    If the price of computers falls 6 percent during a period when the level of average prices falls 12 percent, the relative price of computers compared with other goods: a) Stays the same. b) Increases. c) Decreases. d) More information is required to answer

    asked by Shekhar
  19. Social Studies

    What was the purpose of the Seven Years’ War? What effects did it have on the(American)colonies?

    asked by Bri
  20. physics

    If a car is accelerating downhill under a net force of 3,674N, what force must the brakes exert to cause the car to have a constant velocity?

    asked by steve
  21. Economics

    Suppose that the average earnings for high school graduates is $25,000, the tuition, fees, and books for typical year of college total $10,000 and that a college degree takes 5 years. a) How large must the present value of the increment to earnings from

    asked by Ryan
  22. Chemistry

    My question is very simple Why do metals when react with oxygen are called oxides like " magnesium oxide" whereas non metals reacting with oxygen become dioxides like "carbon dioxides" , note that the two react with oxygen which has 2 molecules

    asked by Gap
  23. science

    Please, where would decomposers go on a food web? I was thinking about putting them at the top and having all of the consumers' arrows point to them and then have an arrow pointing from the decomposers to the producers because don't decomposers decompose

    asked by Lynus
  24. Algebra

    A homeowner wishes to insulate her attic with fiberglass insulation to conserve energy. The insulation comes in 40-cm wide rolls that are cut to fit between the rafters in the attic. If the roof is 6 m from peak to eave and the attic space is 2 m high at

    asked by Micha
  25. Quanitive Methods

    A car rental company has $540,000 to purchase up to 25 new cars of two different models. One model costs $18,000 each and the other model costs $24,000 each. Write a system of linear inequalities to describe the situation. Let x represent the first model

    asked by Tam
  26. Math

    (Preferably answered by tomorrow night - that's plenty of time.) Ray OB is the bisector of angle AOC and ray OC is the bisector of angle BOD. m of angle AOC = 60. Find m of angle COD. *m means "measure" Write a proof in two-column form. Given: ray DC is

    asked by Rodrigo
  27. chem

    A particular coal contains 2.55% sulfur by mass. When the coal is burned, it produces SO2 emissions which combine with rainwater to produce sulfuric acid. Determine how much sulfuric acid (in metric tons) is produced by the combustion of 1.1 metric ton of

    asked by DD
  28. Biology

    What will happen when deionized water is added to red blood cells and then left to sit for 15 minutes? Will the blood cells mix with the water immediately and make a paler solution or will they be more dense than the water and sink to the bottom?

    asked by Ejda
  29. physics

    If a car travels westward with a constant velocity of 20 m/s, what is the net external force acting on it?

    asked by Steve
  30. HELP PLEASE

    the wind blowing on a vertical surface varies jointly as the area of the surface and the square of the velocity. if a wind of 40 mph exerts a force of 50 pounds on a surface of 1/2 square foot , how much force will a wind of 80 mph place on a surface of 2

    asked by Katy
  31. Algebra

    The lesser of two consecutive even integers is 10 more than one-half the greater. Find the integers.

    asked by Sara
  32. math-calculus

    Hi i've been struggling over this question for a while. Can anybody help me with this? A body's velocity at the time t sec is v = 2t^3 - 9t^2 +12t - 5 m/sec. Find the body's speed each time the acceleration is zero. ________________________________ What i

    asked by manny
  33. Math

    Kevin's wife picks him up after work every day at 5:30 pm. One day, he leaves at 4:58 pm, and starts walking home. She pick him up along the way , and when they get home, he notices that they saved four minutes. How long did Kevin walk? :)

    asked by Chris
  34. Algebra

    The lesser of two consecutive even integers is 10 more than one-half the greater. Find the integers.

    asked by Sara
  35. physics

    Can Newton's be negative?

    asked by Stumped Student
  36. Physics

    A bike rider accelerates constantly to a velocity of 8.0 m/s during 4.2 s. The bike's displacement during the acceleration was 19 m. What was the initial velocity of the bike?

    asked by Lee Kite
  37. Physical Science

    On a worksheet labeled "Using The Balance"... The instructions are "The following balances measure mass is grams. What masses are shown on each of the following balances?" There are ruler balances on the work sheet with 3 lines of numbers and balance marks

    asked by Meg
  38. math

    Suppose that the average earnings for high school graduates is $25,000, the tuition, fees, and books for typical year of college total $10,000 and that a college degree takes 5 years. a) How large must the present value of the increment to earnings from

    asked by Ryan
  39. algebra

    sorry...I have alot of homework and these are afew questions i don't understand. please see last post thank you

    asked by pace
  40. Pre-Algebra

    help me calculate this - my 6th grade nephew has this question for homework and I'm at a loss. The combined age of 2 people is 91. Person A is two times as old as Person B was when Person A was as old as Person B is now.

    asked by Tania
  41. Calculus

    Harry has 3 sisters amd 5 brothers. His sister Harriet has a S sisters and B brothers. What is the product of S and B? (A) 8 (B) 10 (C) 12 (D) 15 (E) 18

    asked by Matt
  42. mathematics 1

    A metal plate containing 3/4 square foot of material is divided into six equal parts. how much material (in square feet) does each part contain?

    asked by Anonymous
  43. mathematics 1

    What is four-ninths of 81/144 square feet?

    asked by Anonymous
  44. mathematics 1

    A piece of wire 27/32 inch in length is cut into 3 equal pieces. how long is each piece?

    asked by Anonymous
  45. algebra 2

    write an expression that models the sum of your earnings for three weeks and Rich's earnings for two weeks if you each work (r) hours per week and Rich receives $15 in tips per week. Simplify the expression.

    asked by james
  46. Business

    What are the strategic,tactical and operational objectives for 1.Finance 2.Marketing 3.Production 4.Assets 5.Purchasing/ Stock 6.Housekeeping 7.Human Resources 8.Administration 9.Public Relations 10.Management That is when starting a business

    asked by Ntando
  47. science

    select one region of the world and identify at least two serious environmental problems, such as soil degradation, air or water pollution, pesticide misuse, overpopulation, wildlife extinction or threatened biodiversity, and deforestation, that impact this

    asked by Bruce
  48. Earth Science

    Do the Hawaiian islands appear to be the same age or are they older at one end of the chain or another?Explain. I know the islands aren't the same age but I don't know how to tell which end of the chain has older islands.

    asked by Camron
  49. math

    assign one number from 0,2,3,4,5,6,7,8,9 to each letter in PACIFIC, BALTIC and ARTIC so that PACIFIC + BALTIC + ARTIC = CCCCCCC. What is the value of PACIFIC

    asked by Steve
  50. history

    i am an eighth grader and i need help because we have to write about how there is a loyalist anda patriot and how they are arguing of why they should have a war and why they shouldnt and also why they should declare independence? but it has to include the

    asked by kim
  51. English

    Hi, I have to write a poem in the style of Arthur Rimbaud's "Delirium II: Alchemy of the Word". Is there any websites that can help me with this? Any Tips? Thanks

    asked by Marie
  52. Physics

    For a question in physics... I was told to draw a graph of vertical displacement, y, versus time, t, in 2sec increments from 0 to 1.8. What was given to me was: v_yo_= +10m/s v_xo_= +5m/s a_y_ = -10m/s^2 So I used the formula: y=vo+1/2at^2 I drew the

    asked by Jenny
  53. Chem.

    Why do metal oxides when dissolving in water make an alkaline solution? And Why non-metal oxides dissolve in water and become acids ? Is this a concept that has to be learned or is there a rule or a defintion for it

    asked by Saad
  54. personal essay

    i finished writing my intro and i'm working on writing my second paragraph in which i have to narrate my story as if i was telling it to another person. Here I go: For eight years, i was born and raised in India. My family and i lived in an four story

    asked by Anonymous
  55. Calculus

    Four red balls and two white balls are placed in a jar. One ball is randomly removed and replaced with a ball of the other color. The jar is then shaken, and one ball is randomly selected. What is the probability that this ball is red? Express your answer

    asked by Matt
  56. history

    What did Chinise people eat in the past?

    asked by Lolipop
  57. Economics

    IF income was transferred from individuals with a low MPC to those with a high MPC, aggregate demand would: a) Increase. b) Decrease. c) Stay the same. d) Increase or decrease, but not because of the MPC.

    asked by Prash
  58. georgia studies

    what word fits these: .one whose occupation is survaying land .association of persons for a common benifit . a public offficer of a town or township responsible for keeping peace .to wander in search of food . sonmething that serves as a protective barrier

    asked by Preston
  59. Algrebra

    How do I simplify this: -3(4y)

    asked by Mackenzie
  60. Algebra

    3x-3x+x-3=2x-1+2x-1+2x

    asked by Ashley
  61. algebra question

    240 is the sum of two numbers in which the larger number is 6 less than twice the smaller number what are the two numbers

    asked by AN
  62. Physics

    X(t) = 5t^2 + 2t + 3 What are the units for 5? 2? 3?

    asked by Hannah
  63. Studying tips. . .

    This is a kind of general question, but I was wondering if you have any tips on successful methods of studying. Also, reducing test anxiety. . . =S Thanks! ~Lucy

    asked by Lucy
  64. MAth

    Solve... 2(10-y) = 30 I got 25... but don't think its right

    asked by Anonymous
  65. math

    what is c equal to 4(1.5c + 6) - 2c = -9

    asked by meghan
  66. Physics

    The acceleration due to gravity on the Moon is 1/6 of that of the Earth. Given the same initial velocity: How much higher will an object displace on the Moon? How much more time will it spend in the air?

    asked by Hannah
  67. math-geometry

    a machinery belt runs around two wheels, crossing between them so that the larger wheel turns the smaller wheel in the opposite direction. the diametre of the larger wheel is 36cm, and the diametre of the smaller wheel is 24cm. What is the distance between

    asked by Anonymous
  68. heat

    A siler bar 0.125 meter long is subjected to a temperature change from 200 degrees celsius to 100 degrees celsius what willbe the length of the bar after the temperature change?

    asked by lala
  69. Physics

    During the time interval of 15 to 20 secs. The graph goes from 10 m/s to 4 m/s , what is the average acceleration of that time interval.

    asked by Lee Kite
  70. Earth Science

    Where are new volcanoes forming in Hawaii? I know the new volcanoe is Loihi but I'm not sure where it is forming.

    asked by Camron
  71. Honoirs Algebra

    Hello - I am afreshman & honors algebra is kicking my butt - I need to simplify the following (-6c)(2-3c) can some on help

    asked by Eddie
  72. english

    how can miscommunication be effectively addressed or completely avoided?

    asked by Anonymous
  73. Chemistry

    Unfortunately I was hit by the sweep of illnesses going around due to changing whether and missed school today. Thus I missed the notes in Chemistry leaving me completely confuzzled about tonights homework on Dimmensional analysis or Unit Factoring. I

    asked by Tammy
  74. Algebra I

    Hi: I am looking for confirmation that I have done this problem correctly: 6-(-5r)=5r-3 6+5r=5r-3 6+3+5r=5r-3+3 9+5r=5r 9+5r-5r=5r-5r 9=0

    asked by Karrie
  75. CALCULUS - need help!

    Determine the limit of the trigonometric function (if it exists). 1. lim sin x / 5x (x -> 0) 2. lim tan^2x / x (x ->0) 3. lim cos x tan x / x (x -> 0)

    asked by ac
  76. Chemis.

    Hi my qestion is in the non metal oxides there is one exception that is the oxide of hydrogen,What do we call this oxide ? WHat is its pH? Will it be acidic like most other non-metals reacting with water ?

    asked by Mandch
  77. science

    -------------------a hypothesis organize the------------- state the---------------------the problem choose a ---------------- test your------------------ write the---------------------

    asked by polly
  78. Math repost for Andrea

    math - Andrea, Monday, October 1, 2007 at 5:04pm how do yo use a protracter

    asked by Ms. Sue
  79. english can someone help me please

    i finished writing my intro and i'm working on writing my second paragraph in which i have to narrate my story as if i was telling it to another person. Here I go: For eight years, i was born and raised in India. My family and i lived in an four story

    asked by Anonymous
  80. Social Studies

    Compare the life of the Eastern Woodland Indians and the Southwest Indians.(food,homes,environment,clothes)

    asked by Rascal
  81. History

    What do the people of INDIA EAT IN THE PAST

    asked by ISA556
  82. mathematics 1

    How many cans each with a capacity of 3/8 gallons can be filled from 2 barrels of oil each containing 31 1/2 gallons?

    asked by Anonymous
  83. mathematics 1

    A line is 45/64 inch long. Find the length of a line 4/5 as long?

    asked by Anonymous
  84. Math

    1. I did it this way, but it doesn't check right 2(10-y)=30 _ _ 2 2 (10-y)=15 +10 +10 y = 25 Check: 2 (10-15) = 30 -30 is not equal to 30!!!

    asked by Anonymous
  85. math

    2.5+2.5 ________ 5 What does that mean someone please answer question

    asked by Julie
  86. Alg. 1

    A bridge in Japan is 7.6 miles long. How long would it take you to cross the bridge if you were walking at 4 mi/h?

    asked by Lorexi
  87. sentence revision

    As I was looking at the map on the screen and realized my destination of my new home was REACHING closer, the flight attendant’s announcement CAME on, “Ladies and gentlemen, we ask that you remain seated and fasten your seatbelt. We will be landing

    asked by Anonymous
  88. Algebra

    How do I work this correctly? I know the answer is 7 but I am doing something wrong.Here is what I have... x+ã(2x-5)=10 x+ã(2x-5)^2=10^2 x+2x-5=100 3x-5+5=100+5 3x=105 x=35 PLEASE HELP!

    asked by Micha
  89. Science repost for Kelly

    Science - Kelly, Monday, October 1, 2007 at 7:49pm In a grain of pollen, what is thefunction of the sperm cell that doesn't join with an egg call?

    asked by Ms. Sue
  90. Math

    What is the probability of rolling a six with a standard die, six times in a row?

    asked by Kristen
  91. Calculus

    If a, b, and c are digits for which 7 a 2 -4 8 b ========= c 7 3 then a + b + b = _______ (A) 14 (B) 15 (C) 16 (D) 17 (E) 18

    asked by Matt
  92. Psychology

    What are the strengths of correlation research, observational/descriptive research, and experiments?

    asked by Chrissy
  93. banking

    two words: aehoumncrrusse

    asked by K
  94. 4th grade math

    How do I write an expression? Example:John starts with 37 marbles. He gives one marble to all the kids on his ball team and one to each of his 2 brothers. Please explain how I do this.

    asked by hunter
  95. Computer Science

    Describe, in detail, the job of the operating system. Include the major jobs and secondary jobs that increase performance. How do utility programs support the OS? In addition, give examples of various operating software, citing advantages and disadvantages

    asked by missthang_79
  96. SPANISH HELP HELP

    To cirle the indirect object pronouns and draw an arrow to the indriect objects they stand for. Es muy divertido comprar regalos para mi familia y mis amigos. I circled regalos and drew the arrow to mi familia y mis amigos QUESTION: is regalos circled or

    asked by liz
  97. algebra question

    What will it cost to tile a kitchen floor that is 12 feet wide by 20 feet long if the tile costs $8.91 per square yard?

    asked by Anonymous
  98. Geometry

    Write an equation for the line with the given slpe that contains the given point. Graph each line. 1. slope 2,(2,-2)

    asked by Denzel
  99. Math

    You have the #s o,2,3,4,5,6,7,8,9 and each number represents a letter in the oceans - PACIFIC, BALTIC, ARTIC. If you add up the numbers your answer is the seven Cs or c,ccc,ccc. What is the value of PACIFIC?

    asked by Steve
  100. biology

    can you provide a simple explanation of how a cell fires or synapses

    asked by kate
  101. science

    What are compound and simple eyes?

    asked by Bryan
  102. Physical Science

    Need to know how to measure mass on a balance ruler printed on worksheet. It's getting late... HELP :(

    asked by Meg
  103. algebra 1

    If you add one third of a number to the number itself, you get 48. What is the number? ~Is 64 correct?

    asked by nicole
  104. Business

    Cash Flow and Profits: On-Line Retailer Temps Customers Statement; "Buy Now Pay 2008 - Why Wait? With absolutely nothing to pay until may 2008. our Buy Now Pay Later Plan is the perfect way to afford whatever you want - Today!" Question; Offering customers

    asked by sam
  105. spanish

    To circle the indirect object pronouns and draw an arrow to the indriect objects they stand for. Es muy divertido comprar regalos para mi familia y mis amigos. I circled regalos and drew the arrow to mi familia y mis amigos QUESTION: is regalos circled or

    asked by liz
  106. algebra

    w+16+2w=4

    asked by pace
  107. Math

    Can you show me how to solve this problem? You have a die, what is the probability you will not get a six, six times in a row?

    asked by Steven
  108. math

    What is the probability of a die not coming up six, six times in a row? How do I solve that problem?

    asked by Steven
  109. AP Lit (Help)

    Think about the role of the money in a raisin in the sun how does affect each of the major characters? is abook called a raisin in the sun by Lorraine hansberry

    asked by anonymous
  110. spanish

    To circle the indirect object pronouns and draw an arrow to the indirect objects they stand for. Es muy divertido comprar regalos para mi familia y mis amigos. I circled regalos and drew the arrow to mi familia y mis amigos QUESTION: is regalos circled or

    asked by liz
  111. 3rd Grade Math

    Rounding to the greatest number Question 21+34=

    asked by Keaton
  112. Social Studies

    Who settled Delaware?

    asked by Rascal
  113. Algebra 1

    HOW DO U SOLVE TWO STEP EQUATIONS????

    asked by kylee
  114. social studies

    what are the two areas of the radical republicans help independent black people

    asked by cj
  115. Essay

    I have written the first three paragrapsh of my essay. I was wondering if anybody wanted to edit it for grammar and stuff. Thanks. Famous Firsts Every person lives a life that is different from all others. In this life we each experience something for the

    asked by Amanda
  116. History

    what do China's people eat in the past

    asked by Lolipop
  117. English

    Im reading the story"white tigers" in the book warrior women and i don't know what this quote means" When i get hungary enough, then the killing and falling are dancing too."

    asked by Maggie R
  118. Math

    What is part and total number stories? 3rd grade

    asked by Kenya
  119. A.P. U.S. History

    What role did George Washington play in the 1750’s?

    asked by KT
  120. math

    write an expression to show 19

    asked by jay
  121. Science

    What are societal laws?

    asked by Kiki
  122. english

    Why did Ratcliffe replace the original president?

    asked by nanaq
  123. Calculus

    If 2 to the 1998 power - 2 to the 1997 power - 2 to the 1996 power + 2 to the 1995 power = k times 2 to the 1995 power, what is the value of k? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5

    asked by Matt
  124. Science

    what does deposition mean?

    asked by Dr. JoJo
  125. Calculus

    If a, b, and c are digits for which 7 a 2 -4 8 b =========

    asked by Matt
  126. Calculus

    If a, b, and c are digits for which 7 a 2 -4 8 b =========

    asked by Matt
  127. geography

    after britain sent troops to boston to stop resistance to the townsedn acts, tensions exploded in the boston massacre of 1770 what was the effect?

    asked by bob
  128. U.S. History

    What types of changes were occurring in terms of education, law and politics in the American colonies in the 1700’s?

    asked by Maiya
  129. geography

    what do you see on the surface of the earth?

    asked by kyra
  130. educational technology

    what is the difference between a pamphlets, a brochure and a leaflets??? please cite an example for each (an image)...thanks a lot...

    asked by klar maesen
  131. Econ

    How's the Federal Budget Deficit related to trade imbalances?

    asked by Prince
  132. Math

    How to distribute 25-29(t-50)=19 and solve

    asked by Anonymous
  133. science

    how much water does the usa use yearly

    asked by vince
  134. Pre-Calculus

    How do I find f(g(x)) when there is a radical?

    asked by Courtney
  135. biology

    can you provide an explanation on how a "muscle tone" reflex happens?

    asked by kate
  136. algebra 1

    The sum of a number and 2/5 (two fifths) of itself is 56. What is the number? HOW IN THE HECK AM I SUPPOSED TO SET UP THIS EQUATION? PLEASE HELP... I AM DESPERATE!

    asked by nicole
  137. mathematics 1

    how long is 2/5 of 15/16inch?

    asked by Anonymous
  138. French

    How do you say "we watched the sunset" in French? Is it "nous avons regardé le coucher du soleil?" Merci!

    asked by -
  139. math

    How do you graph polynomials?

    asked by Sarah
  140. science

    What are 4 basic needs of every organism

    asked by donja
  141. ALGEBRA 1

    How would you go about setting up the following word problem? If you add one third of a number to the number itself, you get 48. What is the number?

    asked by nicole
  142. algebra

    8m-15-7m=5

    asked by pace
  143. math

    HELP!!! How do I solve the following: 3h + 2 for h =10

    asked by stephanie
  144. algebra

    4x-7=x+8 4w-19=w+2 8m-90=75-7m 3(2m-5)=9 4w+2(w-5) 5(2x+8)=6x+32

    asked by pace
  145. math

    how d you turn the roman numeral number DCCXXXI into a regular number?

    asked by fiona
  146. math

    how d you turn the roman numeral number DCCXXXI into a regular number?

    asked by fiona
  147. Math

    how do you simplify and combine like terms for this 4(x+5)+3x squared+6(x+1)

    asked by Matt
  148. Economics

    An increase in the price of a good A.increases the opportunity cost of consuming the good. B. decreases the opportunity cost of conusming the good. C. does not effect the oppurtunity cost of consuming the good. D. increases the opportunity cost of other

    asked by cymber
  149. Calculus

    When Rachel divides her favorite number by 7, she gets a remainder of 5. What will the remainder be if she multiplies her favorite number by 5 and then divides by 7?

    asked by Matt
  150. Mathematics 1

    Find the L.C.D. of each of the following groups of fractions and then express the fractions of each group in terms of the L.C.D. of the group. 1/3, 3/5, 21/25, 13/15

    asked by Anonymous
  151. Social Studies

    Who settled Massachusetts?

    asked by Rascal
  152. Social Studies

    Who settled Rhode Island?

    asked by Rascal
  153. Social Studies

    Who settled Connecticut?

    asked by Rascal
  154. Social Studies

    Who settled New Jersey?

    asked by Rascal
  155. Social Studies

    Who settled Maryland?

    asked by Rascal
  156. 3rd grade math

    The instructions are to Round each number to the greatest place. The add. 21+34=

    asked by Keaton
  157. Chemisty

    why do you use water in calorimeters?

    asked by Kelly