math algebra

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  1. Math algebra

    Assume that the stopping distance of a van varies directly with the sqaure of the speed . A van traveling 40 miles per hour can stop in 60 feet. If the van is traveling 56 miles per hour, what is its stopping distance?

    asked by Kyla on November 27, 2016
  2. Math Algebra

    TechWiz Electronics makes a profit of $35 for each MP3 player sold and $18 for each DVD player sold. Last week, TechWiz sold a combined total of 130 MP3 and DVD players. Let x be the number of MP3 players TechWiz sold last week. Write an expression for the

    asked by Lisa on November 2, 2015
  3. Math Algebra

    The natural numbers are closed under division. true or false? the integers are closed under division. true or false? please explain, my teacher did not explain it at all!

    asked by Greeny on August 31, 2009
  4. math algebra

    The sum of 2 numbers is 400.If the first number is decreased by 20% and the second number is decreased by 15% then the sum would be 68 less than 400.Find the numbers after the decreasing.

    asked by someone please help!!! on May 27, 2017
  5. Math algebra

    A motel clerk counts his $1 and $10 bills at the end of a day. He finds that he has atotal of 56 bills having acombined monetary value of $191. Find the number of bills of each denomination that he has

    asked by Evelyn on April 1, 2013
  6. Math algebra

    After 15 years ,Ariel's age will become four times that of her present age . Find her present age.

    asked by Vishwanath on May 1, 2017
  7. math algebra

    at how many minutes after 3pm will the minute hand of a clock overtake the hour hand?

    asked by chelsy on September 22, 2016
  8. Math Algebra

    The coordinates of quadrilateral VXY Are given below. Find the coordinates of its image after a dilation with the given scale factor V(6, 2), W(-2, 4), X(-3, -2), Y(3, -5) scale factor of 2 This question is confusing me and is worth 3 points please help :)

    asked by Jeff on October 18, 2014
  9. math algebra

    you deposit $800 in an account that earns simple interest at an annual rate of 5%. how long must you leave the money in the account to earn $100 in interest?

    asked by caden on September 24, 2018
  10. Math algebra

    The radiator in a car is filled with a solution of 60% antifreeze and 40% water. The manufacturer of the the antifreeze suggests that, for summer diving, optimal cooling of the engine is obtained with only 50% antifreeze. If the capacity of the radiator is

    asked by Shane on November 24, 2015
  11. math algebra

    a diver dives from a cliff .when her centre of gravity is 46 ft above the surface of the water. her initial vertical velocity leaving the water is 9 ft per second. after how many secs does she hit the water? solve

    asked by E on March 7, 2013
  12. math algebra

    An​ employee's new salary is ​$18,165 after getting a​ 5% raise. What was the salary before the increase in​ pay?

    asked by lola on April 19, 2016
  13. math algebra

    when only the cold water valve is opened, a washtub will fill in 8 minutes. When only the hot water valve is opened, the washtub will fill in 12 mintues. When the drain of the washtub is open, it will drain completely in 7 minutes. If both the hot and cold

    asked by niki on November 18, 2016
  14. math algebra

    Terry Edwards invested $3000 for two years, part at 3.5% simple interest and the rest at 2.5% simple interest. After two years she earned a total interest of $190. How much was invested at each rate?

    asked by estefany on November 6, 2016
  15. Math algebra

    Write a missing addend addition sentence to help solve 78-49.explain how you would use it.

    asked by Taha on November 9, 2018
  16. math algebra

    the product of two consecutive even numbers is 440. What is the sum of the numbers?

    asked by laura on November 30, 2016
  17. Math Algebra

    Explain why there are not a function f and an initial value x(sub)0, such that a function's first three iterates are x1=2, x2=2, and x3=8.

    asked by Student_10225 on February 25, 2015
  18. Math Algebra

    Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function. 1. 9x^6-5x^4-2x^3+8x^2-4x=0 2. -9x^4+5x^3-2x^2+4x-3=0

    asked by :D on April 25, 2013
  19. math algebra

    represent the given condition using a sing variable, x. The length and width of a rectangle whose length is 12 centimeters more than its width. the width of the rectangle is _____. The length of the rectangle is ____.

    asked by charlene on July 24, 2011
  20. Math algebra

    the scale on aroad map indicates that 1/4 inch equals 20 miles. How far apart in miles are two towns that are 3 1/2 inches away on the map.

    asked by Rose on August 28, 2008
  21. math algebra

    please help me simplify this expression!! -12 divided by 3 x (-8 + (-4)^2 - 6) + 2

    asked by kate on August 28, 2019
  22. math algebra

    Fill in the missing numbers to complete the linear equation that gives the rule for this table. x y 2 22 3 33 4 44 5 55 y = x + Submit

    asked by jaz on June 15, 2017
  23. Math algebra

    I need some help with this It is given that 2(3 + x) = 6 + 2x. This is an example of the ___________ property. A) associative B) commutative C) distributive D) identity plz type the answer asap like by 7:50 or else I'm a dead man.

    asked by Trevor on December 16, 2016
  24. math algebra

    A tax free municipal bond pays 4.75% compounded continuously. What is the value of a $2,000 bond after 30 years? Round your answer to the nearest cent. [Hint- A=P e^rt where P= present(initial) value, A= future value, r= annual rate, and t= number of

    asked by tom on December 4, 2016
  25. math algebra

    A tax free municipal bond pays 4.75% compounded continuously. What is the value of a $2,000 bond after 30 years? Round your answer to the nearest cent. [Hint- A=P e^rt where P= present(initial) value, A= future value, r= annual rate, and t= number of

    asked by caroline on December 1, 2016
  26. Math algebra

    If two people working together can do a job in 4 hours how long will it take the slower person to do the same job if one of them is 3 times as fast as the other?

    asked by Dila on November 21, 2016
  27. math algebra

    A car was purchased for $3,495 and will depreciate 20% each year. Find a linear function for the value of the car at time t in years. Define variables clearly. Graph the function you found in part A. A claim is made that the car will not be worth anything

    asked by mia on November 16, 2016
  28. Math algebra

    To find the average of a set of test scores we divide the sum of the test scores by the number of test scores. On her first four algebra tests,Paula wests scored 88,92,97,and 96. Write an equation that can be used to determine the grade paula needs to

    asked by Serena on November 10, 2016
  29. math algebra

    Evaluate the following algebraic expressions for the given value: 1. 4y-115 if y=7 2. 312 + 78x if x=4 3. 8z2 - 9 if z=3

    asked by louie on September 22, 2016
  30. math algebra

    two airplane fly toward each other from points 900 miles apart, at the rate, per hour, of 300 miles and 250 miles. when will they meet if they start at the same instant?

    asked by chelsy on September 22, 2016
  31. math algebra

    a motorboat, which can travel at 20 miles per hour in still water, takes 3/5 as long to travel downstream on a river from a to b, as to return. Find the rate of the rivers current.

    asked by chelsy on September 22, 2016
  32. Math algebra

    evaluate 4x^2(2x+x^3y)+x^y for x = 5 and y=0 Evaluate 4 (x/5)^2+3 when c =20

    asked by PLEASE HELP on May 11, 2016
  33. Math Algebra

    Jessica is 4 years younger than Jennifer now. In 10 years, Jessica will be twice the age that Jennifer is now. Find the present ages of Jennifer and Jessica

    asked by Timothy on January 10, 2015
  34. math algebra

    The length of the diagonal across the front of a rectangular box is 25 inches, and the length of the diagonal across the side of the box is 20 inches. The length of a 3 dimensional diagonal of the box is 28 inches. What is length of the diagonal across the

    asked by taylor on December 18, 2014
  35. math algebra

    Decide whether the equation has one solution, no solution or infinitely amount of solutions. 1: 2(x - 3) = 2x one none infinitely 2: 3(y - 3) = 2y - 9 +y one none infinitely 3: 10x - 2 - 6x = 3x - 2 + x one none infinitely 4(x + 3) + 2x= x - 8 one none

    asked by hngh on October 3, 2014
  36. Math Algebra

    At a shoe store, a salesman earns a weekly salary of $150. A salesperson is it also paid 2$ each pair of shoes he or she sells during the week.

    asked by Auxiliary Improvement on September 23, 2014
  37. Math algebra

    what do you call an alligator that sneaks up and bites you from behind

    asked by lani ochoada on September 18, 2014
  38. Math algebra

    You plan a party and spend $26 on decorations. Each of the tables will have 8 party favors and 8 individual flowers. The flowers cost $2.50 each. Which equation can you use to find the cost of each party favor? *please make an equation*

    asked by Mae on June 2, 2014
  39. MATH Algebra

    48x + 32y/32 I have 48x/32 & 32y/32 = 3x/2 + 2y/2 = 3x/2 + y Am I working this correctly? Also 25a + 5b + 15c/10 would I be correct to divide by 5?

    asked by Candi on April 9, 2014
  40. Math Algebra

    f varies jointly as g2 and h, and f = 50 when g = 4 and h = 2. Find when g = 3 and h = 6

    asked by Eva on February 20, 2014
  41. Math Algebra

    Question:: You are about to take a test that contains questions of type A worth 4 point and of type B worth 7 points. You must andwer at least 5 of type A and 3 of type B, but time restricts answering more than 10 of either type. Intotal, you can answer no

    asked by Dulcina on September 24, 2013
  42. Math Algebra

    The first term of a geometric progression is more than the third term by 12. The fourth term is more than the second term by 4. Find: i.the first term a and the common ratio r. ii. the n'th term of the progression.

    asked by Leda on September 2, 2013
  43. math algebra

    Find 3 consecutive odd numbers where the product of the smaller two numbers is 34 less than the square of the largest number.

    asked by Anonymous on June 7, 2013
  44. math algebra

    The top of a rectangular dining room table is twice as long as it is wide. dimensions of the table if the area is 72 ft^2 the table is_____ft wide and ______ ft. long. PLEASE HELP

    asked by pepper on February 15, 2013
  45. math algebra

    The top of a rectangular dining room table is twice as long as it is wide. dimensions of the table if the area is 72 ft^2 the table is_____ft wide and ______ ft. long. PLEASE HELP

    asked by rachel on February 15, 2013
  46. Math algebra

    Write the following as a sum and/or difference of logarithms log((∛x^2+1)/(x^2-1))

    asked by Josh on May 1, 2012
  47. Math Algebra

    f(x)=x^3+4 f=1, f=-1 Are the answer to this 5 and 3 I must not understand

    asked by katie on September 2, 2011
  48. math algebra

    the area of a rectangular garden is 120 square meters. the width is 3 meters longer than 1/3 of the length. find the legth and the width of the garden.

    asked by Anonymous on February 19, 2011
  49. Math Algebra

    elimination using multiplication 2m +3n=4 -m + 2n= 5 Please Help!!!!

    asked by Desmond Reid on January 25, 2011
  50. MATH ALGEBRA

    Which of the following coordinates are intercepts of the linear relation 2x- 3y + 30 = 0 ? I. (0 , 10) II.(0 , 2/3) III.(-10 , 0) IV.(-15, 0) A. I only B. I and IV only C. II and III only D. II and IV only This was what I was trying to do: 2(0)-3(10) + 30

    asked by Anonymous on January 19, 2011
  51. Math algebra

    Sarah’s two student loans totaled $12,000. One of her loans was at 6% simple interest and the other at 9%. After one year, Sarah owed $855 in interest. What was the amount of each loan?

    asked by Julissa on November 21, 2008
  52. Math Algebra

    A 10 foot ladder is to be placed against the wall, the base of the ladder must be placed at an angle of 72 degrees with the level ground for secure footing find to the nearest in how far the base of the ladder should be from the wall the ladder will reach?

    asked by Noelia on March 7, 2007
  53. Math algebra

    an electrician cuts a 17 ft piece of wire into two pieces one piece is 11 ft longer than the other how long are the pieces

    asked by Kendra on May 2, 2020
  54. math algebra

    1. How many solutions does the equation have? 4 x plus 3 equals 2 left-parenthesis 2 x plus 9 right-parenthesis (1 point) one solution no solution an infinite number of solutions impossible to determine 2. How many solutions does the equation have? 4 x

    asked by math help on December 10, 2019
  55. math algebra

    Which of the following is less than 6.5 × 10–5. A. 1.4 × 10–3 B. 2.5 × 10–4 C. 7.8 × 10–5 D. 4.6 × 10–6

    asked by jar on September 13, 2019
  56. Math algebra

    What is a real world problem for 4x+5=37

    asked by Jennifer on April 8, 2019
  57. Math Algebra

    Simplify ((3x^2)/(5y)) / ((5yz)/(6x))

    asked by Eloise on March 26, 2019
  58. math algebra

    The problem is: Find an equation for the line, in general form, with the given properties: slope =4; containing the point (-2, -4)

    asked by Krista on March 2, 2019
  59. Math Algebra

    divide using the long division method. 2a^3-12a^2-26a-20/2a-4=-a^3+6a^2+13a+10/a-2 Please help me with the steps because I get the wrong answer.

    asked by Keonn'a on November 27, 2018
  60. Math algebra

    What is the difference between (-2)^2 and -2^2

    asked by Stacy on September 23, 2018
  61. Math algebra

    I'm not sure if I am right or what to do next. I have to write and solve equation that tells me the number of minutes for which the cost of both phone companies is equal. Phone company. Charges Comp.A. 36cents plus 3 cnts per min. Comp.B 6cents per minute

    asked by Stacy on September 11, 2018
  62. Math Algebra

    Simplify in radical form 2-√12 / 3+√5 Two minus radical twelve over three plus radical five. I believe I have to multiply by the conjugate but it’s coming out to a weird answer, could anyone solve and explain thanks.

    asked by Lauren on August 28, 2018
  63. Math algebra

    Mia bought 7 golf balls. The total weight of the golf balls was 8 ounces. To the nearest hundredth of an ounce, how much did each golf ball weigh?

    asked by Lizzy on July 30, 2018
  64. Math Algebra

    Complete the square to turn the equation into the equation (x - p)^2 = q 2x^4 - 5x^2 - 12 = 0 a.) (x^2 - 1.25)^2 = 6 b.) (x^2 - 2.5)^2 = 6 c.) (x^2 - 2.5)^2 = 7.5625 d.) (x^2 - 1.25)^2 = 7.5625 I learned this topic but for some reason I still don't get

    asked by Bo Burney on July 7, 2018
  65. Math algebra

    It say to find the area of the irregular shape and it's a semi circle with the diameter of 5 and a square measure 8 and I got the area of the rectantagle which is 40 and now I got to find the area of the semi circle but it say the radius for the formula

    asked by Cats24 on February 12, 2018
  66. Math Algebra

    Give an orthogonal vector to the plane: 7x - 5y + 8z = 9

    asked by Anonymous on December 6, 2017
  67. Math Algebra

    Carol bought a new dining table for 1,100.00. She made a down payment 20%

    asked by Carol on November 28, 2017
  68. Math Algebra

    A stamp collector bought 295 stamps for $87.75. The purchase included 5 cent, 25 cent, and 40 cent stamps. How many of each type stamp was purchased?

    asked by Tom on November 6, 2017
  69. Math algebra

    The length of a piece of fabric is 8y yards.Landon cuts 7 yards from it to make some cushion covers.He then uses 4 equal pieces.How long is each piece?

    asked by Angela on June 6, 2017
  70. Math Algebra

    Ann is 8 years older than Dawn. Dan is 5 years younger than Dawn. The sum of their ages is 108. How old is Dan? Please explain work too.

    asked by Jay on May 14, 2017
  71. math algebra

    $199.99 smartphonde on sale for $167. what percentage decrease is this 99

    asked by Brianna on April 6, 2017
  72. Math Algebra

    A drive took some hours to travel from Rome to Milan. His average speed for the whole journey was 80 km/hour. For the first half of the journey he traveled at an average speed of 50km/hour. Find his average speed for the second half of the journey. In this

    asked by Nikki on April 4, 2017
  73. Math Algebra

    hi guys need help with a few questions. 1. Which equation represents the axis of symmetry of the function y = 2x^2+4x-6? A. y= 1 B. x= 1 C. x=3 D x= -3 2. & 3. What are the coordinates of the vertex of the graph of the function - 2. y = -x^2+6x-11 A.

    asked by jack on March 16, 2017
  74. math algebra

    I posted my last question wrong. 1) The slope of a line is 3/4, the line passes through the point(4,7). Where does the line intersect the y-axis? 2) If x/y=z, and x*y*a=0, which of the following variables have to=0? Assume each of the variables is = to a

    asked by Quarie on March 1, 2017
  75. Math Algebra

    Solve algebraically using only variable: The length of a rectangle is two less than three times its width. If the area of the rectangle is 65, find the length and the width. (The area of a rectangle is equal to its length times its width.

    asked by Tony on February 20, 2017
  76. math algebra

    Sum the following term of progression to the last term, logx, logx^2 logx^3.... logx^120

    asked by Joseph on February 12, 2017
  77. math algebra

    Problem Page Brian rented a truck for one day. There was a base fee of $15.99 , and there was an additional charge of 93 cents for each mile driven. Brian had to pay $259.65 when he returned the truck. For how many miles did he drive the truck?

    asked by alexis on January 11, 2017
  78. Math algebra

    The radioactive decay of a substance is expressed by A=A^0 e^ -kt, where the initial amount A^0, decays to an amount A after t years. The positive constant k differs for each substance. Strontium 90 decays such that k=.028. Find out how much of 1,000 mg of

    asked by Emily on December 15, 2016
  79. math algebra

    At a college, records show that the average persons grade point average, G, is a function of the number of hours he or she studies and does homework per week h. The grade point average can be estimated by the equation : G=0.01h^2 +0.2h+1.2 To obtain a 3.2

    asked by tom on December 7, 2016
  80. math algebra

    The amount A, of 70 grams of a certain radioactive material remaining after t years can be found by the equation A=70(0.62)^t. When will 10 grams remain?

    asked by laura on December 1, 2016
  81. math algebra

    The lengths of the three sides of a right triangle are given by three consecutive even integers. Find the lengths of the tree sides.

    asked by laura on November 29, 2016
  82. Math algebra

    If f(x) =2x-1, then f^-1(x)=???

    asked by Emily on November 27, 2016
  83. math algebra

    Find an eqaution for the line passing through (1,3) and perpendicular to the line 3y=-2x+6

    asked by niki on November 27, 2016
  84. Math algebra

    A varies jointly as R1 and R2 and inversely as the sqaure of L. Find A when R1=180, R2=8,L=5, and k=3/2 P.S the 1 and 2 next to the R are exponents at the bottom of R and not at the top.

    asked by Dila on November 27, 2016
  85. math algebra

    if f(x) = x+1/x^2-9 and g(x) =x/x-3, find a) domain of f(x) b) domain of g (x) c) (f+g) (x) d) the domain of (f+g) (x)

    asked by laura on November 19, 2016
  86. math algebra

    Angelo Buninin operates a gondola in Venice, Italy. When angelo rows his gandola in the grand canal, he can travel 2.8 miles when rowing with current in the same amount of time as he can travel 2 miles when rowing against the current. Find the speed of the

    asked by fetty on November 19, 2016
  87. math algebra

    Gray Glaze requires 15 hours to put a new roof on a house. His apprentice, Anna Gandy, can record the house by herself in 20 hours. After working alone on a roof for 6 hours, Gary leaves for another job. Anna takes over and completes the job. How long does

    asked by jacky on November 19, 2016
  88. math algebra

    if f(x) = x+1/x^2-9 and g(x) = x/x-3, find a) the domain of f(x) b) the domain of g(x) c) (f+g) (x) d) the domain of (f+g) (x)

    asked by rita on November 19, 2016
  89. math algebra

    consider the function f(x)= x-2/x^2-81. for what value of x, if any, will this function a) equal 0? b) be undefined explain.

    asked by stef on November 18, 2016
  90. math algebra

    As of 2012, the movies with the highest worldwide box-office sales are Avatar, Titanic, and The Avengers. The total box-office sales for all three movies were $6.5 billion. The box-office sales for Avatar were $0.2 billion less than twice the box-office

    asked by stef on November 18, 2016
  91. Math algebra

    Considerthe function f(x)= x-2/x^2-81 for what value of x if any will this function a) equal 0 B)be undefined. Explain.

    asked by Dila on November 17, 2016
  92. Math algebra

    As of 2012, the movies with the highest worldwide box-office sales are Avatar, Titanic, and The Avengers. The total box-office sales for all three movies were $6.5 billion. The box-office sales for Avatar were $0.2 billion less than twice the box-office

    asked by Chloe on November 17, 2016
  93. Math algebra

    Sharons rectangular vegteable garden is 20 feet by 30 feet. In addition mulching her garden, she wants to put mulch around the outside of her garden in a uniform width. If she has enough mulch to cover an area of 936 sqaure feet, how wide should the mulch

    asked by Karina on November 17, 2016
  94. Math algebra

    The sum of the measures of the angles of a triangle is 180° Find the three angles of a triangle if one angle is 20° greater than the smallest angle and the third angle is twice the smallest angle.

    asked by Marina on November 10, 2016
  95. Math algebra

    David Robertson works as a chemical engineer for U.S. peroxide Corporation. David has 2500 gallons of commercial-grade hydrogen peroxide solution that is 60% pure hydrogen peroxide. How much distilled water(which is 0% hydrogen peroxide) will David need to

    asked by Selena on November 9, 2016
  96. Math algebra

    (a+b)(a-b)

    asked by Sunil on September 21, 2016
  97. Math Algebra

    A brand cookie mix calls for baking cookies at a temperature of 350°F. However, for high altitues (3500-6500 ft. above sea level) l, baking at 37t°F is suggested. a. Construct a piecewise linear function for the recommended baking temperature, T (s), as

    asked by Fergie on September 18, 2016
  98. Math Algebra

    How can I solve this problem? A circle has diameter [AB]. The centre of the circle is (1,3), and B has coordinates (4,-1). # Find the coordinates of A. # Find the length of the diameter. HELP ME PLEASE

    asked by CC on September 4, 2016
  99. Math Algebra

    A 2 digit number is increased by 36 when the digits are reversed. The sum of the digits is 10. Find the original number.

    asked by Anonymous on September 2, 2016
  100. math algebra

    what is the 7th term of the geometric sequence 10,2.2/5,2/25 (solve here)

    asked by eljone on August 16, 2016

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