Write an equation to solve each problem.

The sides of one cube are twice as long as the sides of a second cube. What is the side length of each cube if the total volume of the cubes is 72 cm^3?

Would it be, 3x+6x=72? Thanks

  1. 👍 0
  2. 👎 0
  3. 👁 355
  1. No. It wouldn't be that.

    volumes of cubes is V=s^3 where s is side length.

    72= s^3+ (2s)^3= s^3+8s^3
    and you find s, the side length of the smaller cube, and 2s is the side length of the larger cube.

  2. I came up with 8=s^3, how would I solve this? Thanks

    1. 👍 0
    2. 👎 0
  3. Take the cube root of each side.

  4. Thanks for your help!

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    Rajinder collects hockey cards. He currently has 75. He has a plan to collect 12 more each week. after how many weeks will he have a total of 147? a) write an equation that you can use to solve this problem. b) solve the equation

    asked by dakota on June 22, 2020
  2. math

    A=1/2h (b1 + b2) Solve for b1 A=1/2h (b1 + b2) Solve for b1 I assume this is A = (1/2)(h)(b1 + b2); i.e., the h is in the numerator and not the denominator Multiply both sides by 2. 2A = (2*1/2)h(b1 + b2). 2*1/2 on the right side

    asked by ryan on August 15, 2006
  3. calculus

    The volume V of a cube with sides of length x in. is changing with respect to time. At a certain instant of time, the sides of the cube are 6 in. long and increasing at the rate of 0.3 in./sec. How fast is the volume of the cube

    asked by Anonymous on October 27, 2012
  4. 3 grade math ms sue

    problem solving draw a picture 1-Larry used a pattern of colors to make a cube train.He used a red cube,a blue cube,a red cube,and another red cube before he started the pattern again.He used 15 cubes. How many red cubes did Larry

    asked by dw on May 31, 2012
  5. algebra 2

    Write a word problem whose solution involves taking a cube root. State the problem and solve it, showing and explaining all steps.

    asked by your mom on January 18, 2019
  1. math

    a cube with 2 in sides is placed on a cube with 3 in sides. then a cube with 1 in sides is placed on the 2 in cube. what is the surface area of the three cube tower?

    asked by j on March 21, 2013
  2. MaTH Question

    Write an equation for the problem & solve. There are 500 cm of trim to frame a banner. The banner is 22cm wide. How long can it be? Thanks you so much 500 x 22 = 11000 ( this gives you area) Then multiply 11000 by 2 because there

    asked by Aubrey on November 24, 2006
  3. geometry

    In triangle ABC, • AB is x cm long • BC is twice the length of AB • AC is 10 cm longer than AB. The perimeter of the triangle is 42 cm. Write down an equation in x and solve it. Use your answer to find the lengths of the

    asked by Anonymous on January 16, 2011
  4. Physics

    The figure shows a cube whose sides are all 5cm long. Over the entire left-hand side of the cube is a uniform electric field E1=7500 N/C which is entering the cube at 20 degrees below the x axis. Over the right-handed side is a

    asked by Anonymous on June 14, 2016
  5. Math 116

    I have a long problem which I need help with..... Q1) there are two plans available with a total of 56 houses available. x represents plan 1 and y represents plan 2. write an equation illustrating the situation: A1) x+y=56 Q2)

    asked by Carmen on November 1, 2008
  6. math-volume

    I'm confused with how to solve this problem, so help would be great! The volume of any spherical balloon can be found by using the formula V= 4/3 pi r^3. Write an equation for r in terms of V and pi All this is asking you to do is

    asked by julie on January 21, 2007

You can view more similar questions or ask a new question.