Thursday

July 28, 2016
Number of results: 2,699

**probl;em solving**

in harry's attic there are three spider webs. the first web is twice as large as the second web. gthe third web is 3 inches larger than the first web. the combined width of the three webs is 1 foot and 6 inches. how long is each web?
*September 28, 2012 by Anonymous*

**algebra probl 4**

30/6*5 is it 25?
*October 6, 2011 by Marko*

**algebra probl 3**

i need to make up a problem - write an expression involving addition and multiplication in which you should add first. i wrote this is it right? 4 (3+2) = 20
*October 6, 2011 by Marko*

**MATH**

Solving by graphing DQ 1 Solving by substitution Solving by elimination Which method do you think would be best to solve this system? y=10x-8 y=1/2x+5
*October 19, 2010 by Anonymous*

**Probl**

a ladder 8 meters long leans againts the wall of a building. if the foo|t of the ladder makes an angle of 68^0 with the ground how far is the base of the ladder from the wall ?
*March 22, 2016 by Leonardo*

**algebra attn Reiny**

Thanks for your help with the solving of the three equations! Yes, it was a typo. I just finished solving it a long way, solving for the 1st 2 equations then the 2nd and 3rd and plugging in variables...etc. etc. Your way gave the same answer, but quicker, does your way always ...
*February 24, 2009 by Terri*

**math**

What strategy did you use in solving this problem? 22. Suppose that you wanted to find the whole numbers represented by each of the letters in the following addition problem: Which problem-solving strategy might be most helpful to you in solving this problem? (You need not ...
*January 20, 2010 by kim*

**Math**

Explain how solving a linear inequality is similar to solving a linear equation. Explain how solving a linear is different from solving a linear equation.
*February 8, 2011 by Cindy*

**Pre-Algebra**

explain how the process of solving x/-2=8 is different form the procss of solving x/4=8?
*February 8, 2012 by taylor*

**Algebra 2**

Solving Quadratic Systems x^2+y^2=2 x^2-6y=10 I'm having trouble solving this problem.
*December 1, 2014 by Michelle*

**Algebra 2**

Solving Quadratic Systems 2x^2+5y^2=53 4x+y^2=17 Please show work I'm having trouble solving it.
*November 29, 2014 by Alicia*

**Algebra 2**

Solving Quadratic Systems x^2+y^2=2 x^2-6y=10 Please show work I'm having trouble solving it
*December 1, 2014 by Alicia*

**Algebra 2**

Solving Quadratic Systems x^2+y^2=20 x^2-6y=28 PLEASE SHOW WORK I'M HAVING TROUBLE SOLVING IT
*December 1, 2014 by Alicia*

**Algebra 2**

Solving Quadratic Systems 16x^2-9y^2=144 y=9-x^2 Please show work I'm having trouble solving it.
*November 29, 2014 by Alicia*

**Solving Equations with variable on Both Sides**

I need help solving this. I've never been really good with fractions, so, thats probably why.: 3p/8 + 7p/16 - 3/4 = 1/4 + p/16 + 1/2
*May 3, 2008 by Mitch*

**college al**

x and y intercept y=2x^3√9-x^2 I know x=(a,0), y(0,b)but from here solving x i get 2x^4-6x^3, 2x^3(x-3), then what and solving for y i get (0,0)
*April 1, 2009 by john*

**math**

How is solving -4x=-4.8 different from solving -1/4x = -4.8? How are the solutions related?
*April 15, 2016 by Veronica*

**solving for x**

y=e^x how do i solve for x. i use the LN process right. i forgot how to do that ln(e ^ x) = x Leo, you have merely stated an identity. David was solving y = e^x for x, which would be x = ln y Thanks reiny.
*January 9, 2007 by david*

**Math**

Hello! I need assistance in solving for a side for a right triangle in trigonometry. Can anyone give me the easiest way/formula how to go about solving it? Thank you!
*November 26, 2007 by Jenny Lynn*

**checking answers 4 algerbra**

1. What percent of 120 is 48? 57.6%? 2. collect like terms. 17T + T + 15/13T= 249/13T? 3. solve using the principles together. 3x-6=12 i am solving for x=6? 4. solve using the addition principle. -37+n=19 i am solving for n= -18? 5. solve using the multiplication principle. -...
*November 8, 2009 by Nashea*

**checking answers 4 algerbra**

1. What percent of 120 is 48? 57.6%? 2. collect like terms. 17T + T + 15/13T= 249/13T? 3. solve using the principles together. 3x-6=12 i am solving for x=6? 4. solve using the addition principle. -37+n=19 i am solving for n= -18? 5. solve using the multiplication principle. -...
*November 8, 2009 by Nashea*

**Math**

Explain how solving a linear inequality is similar to solving a linear equation. Explain how solving a linear inequality is different from solving a linear equation.
*February 8, 2011 by Cindy*

**Math**

Can someone correct it Evaluate the following expressions numbers 3-4 3) [(2+3)^3-4(5)]+7 My way of solving: [(5)^3-4(5)]+7 [123-4(5)]+7 [123-20]+7 [103]+7 My answer: 109 4) [25/ (2^3-3)]*2 My way of solving: [25/(8-3)]*2 [25/5]*2 [5]*2 My answer:10 Thanks for showing your ...
*November 24, 2006 by Jasmine 20*

**chemistry 1**

k2=[H][SO4]/[HSO4] .012=(.01+x)(x)/(.01-x) Solve for x, and calculate pH where H is .01+x When I am solving for x does it become .012= .01x + x^2/ .01 -x.. what is the next step of solving for x?
*March 26, 2008 by lyne*

**Psychology**

Why is problem solving considered the highest level of mental activity? What makes an individual good at problem solving?
*September 10, 2011 by Linda*

**Algebra**

Explain the difference between solving a linear equation graphically and solving a system of equations graphically. How would I go about doing this?
*February 18, 2009 by Suzanne*

**college algebra**

compare and contrast the ways in which solving a linear inequality is similar / dissimilar to solving a linear equation please explain
*September 9, 2014 by Debra*

**english**

For this sentence, What are the sources that prevent solving the issue? do i need the "in" between prevent and solving
*January 22, 2011 by blaking*

**MATH URGENT**

a. Solve a – 9 = 20 b. Solve b – 9 > 20 c. How is solving the equation in (a) similar to solving the inequality in (b)? d. How are the solutions different? I dont know how to do this i forgot ... could u help (Steve, or Mrs.Sue, or Writeteacher plz help)
*January 18, 2013 by Gabby*

**Math**

I am having probl w/word problems. A kitchen floor is covered w/altern black and white tiles. Ech tile is a 12 inch square. If the kitchen meas 10'x10' how many black tiles are on the floor? Is this right 10 x 10= 100' 100' x12= 1200" 1200 divided by 12= 100 100 divided by 2= ...
*September 17, 2008 by Hope*

**Calculus**

I am having trouble solving this problem: "Find where the tangent line is horizontal for r=1+cos(theta)" I would really appreciate the feedback, I'd like to know how to go about solving problems like these. Thank you!
*March 1, 2013 by Anonymous*

**Chemistry**

I need help in solving this problem: A certain substance has a heat of vaporization of 42.46 kJ/mol. At what Kelvin temperature will the vapor pressure be 5.00 times higher than it was at 291 K? I know that I have to use the Clausius-Clapeyron equation, but what would I be ...
*February 24, 2013 by Confused*

**algebra**

Explain the difference between solving a system of equations by the algebraic method and the graphical method. Someone also wants to know why there are different methods for solving the same problem-what would you tell him? Tiffany Oakes
*July 12, 2010 by kiMBERLY*

**Math**

9(x+2)(x+1)-2(x+2)-4(x+1)=0 I'm in the middle of solving an equation. I know that you have to FOIL but how did they get 9(x^2+3x+2)-(4x+4)=0 ? I thought you distribute the 9 through (x+2)(x+1). and why is it (4x+4) instead of (4x-4) because -4 x 1 = -4 .... Please help me ...
*June 9, 2013 by Beth*

**Algebra**

I am solving for sytems of equations using the elimination method. Book says answers are 0,-1. I have tried solving for both x & y using both the 5 and 25 . I am not getting the 0,1 as my answer. 5x-5y=5 25x-25y=22
*April 1, 2008 by G*

**math prob:(**

a. Solve a – 9 = 20 b. Solve b – 9 > 20 c. How is solving the equation in part a similar to solving the inequality in part b? d. How are the solutions different?
*January 22, 2014 by Princess Anna*

**Math**

I really need help solving this! For questions 6-7, simplify the expression. 6. -6 - 7(c + 10)(1 point) A. 64 - 7c B. -76 - 7c C. 4 - 13c D. -16 - 13c I don't know which to choose, I need help solving this!
*December 18, 2015 by Angel*

**BUS 401**

Which of the following statments regarding the cost of preferred stock is true? a.It is typically found by solving for an annuity’s discount rate. b. It is tpically found by solving for an annuity's due's discount rate. C. It is found similarly to a perpetuity's discount rate ...
*January 19, 2014 by Leo*

**Algebra**

Solving Linear Equations and Inequalities Solve by eliminating x (this is solving 3 linear equations) then substitute to the other two equation x + y + 5z =2 (1) 4x - 3y + 5z =3 (2) 3x - 2y + 5z=1 (3) my teacher gave me the answer she said the solution set for this should be...
*April 25, 2016 by Clyde*

**math**

a. Solve a - 9 = 20 b. Solve b - 9 > 20 c. How is solving the equation in part a similar to solving the inequality in part b? d. How are the solutions different?
*December 19, 2013 by victoria*

**MATH**

a.) Solve a - 9 = 20 b.) Solve b - 9 > 20 c) How is solving the equation in part a similar to solving the inequality in part b? d.) How are the solutions different?
*January 17, 2014 by Cindy*

**Math**

a.) Solve a - 9 = 20 b.) Solve b - 9 > 20 c) How is solving the equation in part a similar to solving the inequality in part b? d.) How are the solutions different?
*January 17, 2014 by Jenny*

**Algebra I DONT KNOW HOW TO DO 3 VARIABLES **

Solving Linear Equations and Inequalities Solve by eliminating x (this is solving 3 linear equations) then substitute to the other two equation x + y + 5z =2 (1) 4x - 3y + 5z =3 (2) 3x - 2y + 5z=1 (3) my teacher gave me the answer she said the solution set for this should be...
*April 25, 2016 by Clyde*

**algebra 1**

I was just wondering if anybody could explain to me the steps in 'solving systems in substitution' and 'solving systems in substitution with a variable'. I'm majorly confuzled!!!! It might help to post a specific problem so someone can show you the steps.
*March 7, 2007 by Otoño*

**geometry**

what are the relationships between corresponding sides perimeters and areas ofsimilar figures how are the characteristics of similar figures applied in problem solving how ara these relationships applied in solving real world situations
*February 8, 2011 by jonathan andres*

**algebra,math**

can someone correct these. and help me DIrections:Factor (3) 4x^2-4x-15 My solving: 4*x*x-4*x-15 (the star means multiply my final answer: x^3-15 (the ^ means for exponent) (4) 5x^2-26x+5 my solving: 5*x*x-26*x+5 my final answer: x^3-16 I don't understand what you did. The ...
*December 12, 2006 by jasmine20*

**Solving Geometry Problem - PLEASE HELP - Test tom!**

A cone has a slant height of 10 centimeters and lateral area of 60pi square centimeters. What is the volume of the sphere with a radius equal to that of a cone? -we tried solving and got 4.37 or so for the radius and we couldn't get any further than that
*April 19, 2011 by Gina*

**MATH**

I've been having problems with solving equations that involve fractions with the following problem can I get some help for solving equations that involve fractions? x+1=2/3x Thanks for the help.
*March 14, 2009 by Jen*

**writing**

Discuss how, as a professional, you may be able to assist children in refining their learning and metacognitive problem-solving strategies. At what stage in the maturation process do you believe it is most important to address a child’s learning and problem-solving strategies...
*June 11, 2008 by Kell*

**beginning chemistry**

The problem says indicate the the number of sig. figs. that should be present in the answers to the following problem without solving the problem. 0.70 x 7.00 x 6.880= What is a sig.fig. and how can you find them without solving the problem? It doesn't make sense
*September 19, 2007 by Kimmi*

**Child Development**

Discuss how as a professional, you may be able to assist children in refining their learning and metacognitive problem-solving strategies. At what stage in the maturation process do you believe it is most important to address a child’s learning and problem-solving strategies?
*September 20, 2008 by Melvenia*

**English**

1. To come up with possible solutions to a problem is referred to as: A. decision making. B. concept mapping. C. critical thinking. D. problem solving. is it D 2. "Should I apply for a job or go for an internship?" is an example of which stage in the problem-solving process? A...
*March 21, 2013 by Amy*

**math**

Anthony has 7 bills. All the bills are tens or twenties. The bills Anthony has total $100 in value. How many of each hill does Anthony have? Pretty sure the solving method is solving systems of equations but you have to isolate the variables and stuff.. please help!!
*April 19, 2016 by claire*

**math...**

A. Solve a-9=20 I did 20+9=29 29-9=20 a=29 Part b solve b-9>20 I did b-9>20 b-9+9>20+9 b>29 Part c how is solving the equation in part a similar to solving the inequality in part b? I put They are both using the same numbers. Part D I put A is equal to and b is ...
*September 25, 2014 by Anonymous*

**HELP-PROBLEM SOLVING IN MATHEMATICS**

probably the most famous approach to problem solving is Polya's four-step process. Describe the four-step process.
*October 14, 2011 by alya*

**Math Analysis**

What is the approximate horizontal distance traveled by a soccer ball that is kicked at an angle of 30 degrees with an initial speed of 60 feet per second? a) 84 ft b) 88 ft c) 93 ft d) 97 ft e) 105 ft ==> I tried solving it by solving for x in the equation cos30 = x/60, x ...
*January 10, 2010 by Emily*

**Business Algebra**

Produce an example of a system of equations to your fellow students and allow them to respond on which method (graphing, substitution, elimination, matrices) they would choose for solving your systems of equations. Be sure to reply to students' responses on their preferred ...
*June 10, 2009 by Redbone*

**Algebra SOLVING LINEAR EQUATIONS AND INEQUALITIES **

Please help Im am Grade 5 and my teacher is letting me do this. 1. Solve the solution by using elimination and substitution 3/x - 2/y = 14 6/x + 3/y = 7 2. Solve by eliminating x (this is solving 3 linear equations) then substitute to the other two equation x + y + 5z =2 (1) ...
*April 25, 2016 by Clyde*

**Math (Solving Equations) **

Find all solutions (answers should be given in simplified form). Some answers may involve the number i. *I will use lowercase l to represent absolute value lines.* 3 lx-1l + 4 = 19 We've never really worked with absolute value in solving equations before. Do I distribute the 3...
*May 17, 2015 by Leah*

**Math**

ok so i'm kinda sort of confused... I had this for a equation X^2 + 4X - 1 = 0 and then I was like zero??? zero... really zero... hmm... X^2 + 4X - 1 = dy ???????? That zero does represent when Y equals zero correct??? this allows us to solve for X OH!!!!!!!!!!!!!! wait so I'm...
*January 3, 2010 by Kate*

**Algebra 2**

Solve. 4a-2≤a+1≤3a+4 4a-2-1≤a+1-1≤3a+4-1 4a-3-3≤a≤3a+3-3 4a/3-6/3≤a≤3a/3 4a/3(1/a)-2≤a≤a(1/a) 4/3-6≤a≤1 I got lost at this part. I'm not sure what to do now, if i am solving it correctly. Solve. 3x<4-5x...
*September 30, 2011 by Anonymous*

**Chemistry**

I dont know if i am solving for the number moles of NaI correctly, i multiply .21 by 1.67, is that incorrect? i know that to solve this you have to find the limiting reagent, but i think the problem might be that i am solving for moles wrong. If 210 mL of 1.67 M aqueous NaI ...
*April 20, 2010 by Tokey*

**math**

Please help solving this problem. Solve the following word problem: One poll reported that 48% of city residents were against building a new stadium. The polling service stated that the poll was accurate to within 3%. What is the minimum percent of city resident that oppose ...
*April 6, 2010 by bindiya farswani*

**History **

1) Which of the following best describes Affirmative Action? a) It was a way to fight corruption within the US government. b) The actions taken to instill new anti immigration laws. c) Of solving economic and educational discrimination. d) Of solely solving educational needs ...
*May 13, 2015 by Rebecca*

**chemistry**

solving problems in bodies thrown vertically downward. solving problems in bodies thrown vertically upward
*January 28, 2012 by mhae*

**Algebra**

A chemist mixed a 70% alcohol solution with a 30% alcohol solution to make a 45% alcohol solution. How many liters of each were used to make 120 L of a 45% solution? I tried solving this with elimination method and made two separate equations. For instance, x+y = 120(.45) .70x...
*May 20, 2016 by Annie*

**AP Chem**

Sorry, I have one other question. How would I go about solving this problem? What fraction of the total volume of a closet packed structure is occupied by atoms? What fraction of the total volume of a simple cubic structure is occupied by atoms? Do i need to just plug in ...
*January 1, 2008 by Nick*

**solving equations fractions**

how do i go about solving equations fractions?
*September 7, 2010 by danique*

**math**

What is the line of thought or sequence of thought for solving simple algebraic expressions? When I'm asked to solve the expression (5k)k^3....first I check with my list of exponent rules, and there are always a few that could be used to solve the expression.I just dont know ...
*May 12, 2010 by Cliff*

**Calculus and Vectors**

In triangle RST, RS=4, RT=7, and ST=5. Determine the measures of the angles to the nearest degree. I solved correctly for T's angle of 34 degrees. Once I try using the sine law to solve for angle S, I keep getting 78 degrees, when it's supposed to be 102 degrees. I tried ...
*September 9, 2015 by Chuck*

**Math - Problem solving**

I used the guess and check method for solving this problem but would like to know how to set up the equation. A camp counselor buys granola bars and juice drinks for the campers. She decides to buy 3 times as many drinks as granola bars. Predict how many of each she can buy on...
*January 27, 2015 by Marie*

**MATH**

1~ a.) Solve a - 9 = 20 b.) Solve b - 9 > 20 c) How is solving the equation in part a similar to solving the inequality in part b? d.) How are the solutions different? 2~ Briana is allowed to watch no more than 5 hours of T.V a week. So far this week, she has watched 1.5 ...
*January 17, 2014 by Wendy *

**please help me in math**

The two-way table shows the number of people whose hobbies are reading or solving puzzles and who either ride a motorcycle or don’t ride a motorcycle. Among people whose hobby is reading, what is the relative frequency of not riding a motorcycle? Express your answer as a ...
*January 12, 2015 by Aspen*

**physicss**

The question states: A 5.2 kg box is on a frictionless 36 degree slope and is connected via a massless string over a massless, frictionless pulley to a hanging 2.1 kg weight. What is the tension in the string if the 5.2 kg box is held in place, so that it cannot move? I summed...
*December 9, 2010 by Taylor*

**Physics**

Several volcanoes have been observed erupting on the surface of one of Jupiter's closest moons. Suppose that material ejected from one of these volcanoes reaches a height of 4.96 km after being projected straight upward with an initial speed of 132 m/s. Given that the radius ...
*April 28, 2012 by Jane *

**11th Grade Physics**

An aircraft has a take-off speed 180km/h and length 250m from the start just before take-off a serious snag is detected in the engine and the aircraft failed to take-off. There is a wall at a distance 'd' = 230m ahead of the take-off point. The pilot applies breaks which ...
*July 27, 2010 by Praveen*

**math**

1) Why should we clear fractions when solving linear equations and inequalities? Demonstrate how this is done with an example. Why should we clear decimals when solving linear equations and inequalities? Demonstrate how this is done with an example.
*March 21, 2012 by jess*

**lattice math**

Why should we estimate before solving a problem? We should estimate before solving a problem to make sure our answer is close to the real answer. Here's a simple problem. Suppose we want to find wnat a 6% tax on a $10 purchase would be. When you do the math, the answer depends...
*October 3, 2006 by marc*

**Math/ Algebra**

Post your responses to the following. Answer each question in a separate paragraph: Techniques that can simplify solving equations and inequalities are to clear fractions and decimals when solving linear equations and inequalities. 1. Demonstrate how fractions are cleared with...
*June 14, 2010 by Amanda*

**Calc I**

y = (x^2 -4)/(x^2 - x -12) dy/dx of numerator I got 2x dy/dx of denomenator I got 2x - 1 dy/dx of y I got (x^2 - 16x -4)/((x-4)^2(x+3)^2) setting numerator to zero and solving got 8 +/- sqrt(65) with the critical value being the + setting denomenator to zero and solving got 4 ...
*July 24, 2010 by Kate*

**math-solving for x with e**

1.) e^(2x) - 3e^(x) - 4 = 0 2.) e^(1-2x) ((e^(3x+6) - e^(2x)) = 0
*February 13, 2011 by Amanda*

**Algebra2**

Help Solving This? 1. x-3x^1/2+2=0
*August 29, 2012 by Unknown"*

**chemistry**

A mixture of Ar and N2 gases has a density of 1.361 g/L at STP. What is the mole fraction of each gas? not sure on really where to start Work this as the classic mixture: the mass of 22.4 liters of the gas is 1.361*22.4 grams. molmassargon*Far + molmassN2*Fn2=1.361*22.4 where ...
*June 18, 2006 by UTramos*

**math**

4x-y+z=-5 2x+2y+3z=10 5x-2y+6z=1 solving x,y,z with Matrices
*May 4, 2008 by yumei*

**Solving for Variables**

1. 2T^2 + 3KT - 3K = 2 (for T) 2. x^3-4x^2 + 6 = 0 (for x)
*August 5, 2008 by Lacey*

**Math**

Need help in solving 0.5b+3.4=0.2b+12.4
*November 3, 2008 by Maddy*

**math, solving roots**

4x²-25=0
*February 21, 2009 by michelle*

**solving for variable**

2=(1.01)^n how do you solve for n
*April 9, 2009 by jen*

**solving for variable**

2=(1.01)^n how do you solve for n
*April 9, 2009 by jen*

**Algebra**

I need help solving 3x-1/x+5 + 43/x^2-25= 3x+1/x-5
*December 2, 2009 by Chelsea*

**algebra**

can someone help me with solving this? 5/2x+1/4x=9/4+x
*January 9, 2010 by Lisa*

**math 116**

Help solving this: 8x-(2x+5)=25
*January 26, 2010 by lisa*

**math**

solving this equation...0.9x + 9 ¡Ü 1.3x-6
*March 17, 2010 by amy*

**algebra**

solving quadratics
*April 19, 2010 by bri*

**ALGEBRA **

need help solving 50=3(r+16)- 2(r-2) and 5(2x-10)/2 + 14 = 19
*April 28, 2010 by DEBBIE*

**algebra**

solving equations -x^2, if x=-1, etc
*October 14, 2010 by mike*

**Algebra 1**

-p/-7>-9 What is p? For solving inequalities.
*December 16, 2010 by Lauren*

**Math Problem Solving**

6n+(8n-2n)+3/2
*December 21, 2010 by Ian*

**Math Problem Solving**

6n+(8n-2n)+3/2
*December 21, 2010 by Ian*

**Algebra**

(a-x)/(b-x)=c/(x-b) How do i go about solving this?
*January 23, 2011 by Anonymous*