A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
Suppose a prism has a length of (x+7), a width of (x), and a height of (x). This prism has the same surface area as an 8in cube. Find the dimensions of the prism.
anonymous
 5 years ago
Suppose a prism has a length of (x+7), a width of (x), and a height of (x). This prism has the same surface area as an 8in cube. Find the dimensions of the prism.

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0We know the surface area of a cube, right? 6x^2, where x is one side's length. In this case, it's 6 * 64 which is 384. Now, the surface area of a (rectangular?) prism is SA = 2*w*l + 2*w*h + 2*l*h where w, l, and h are width, length, and height. Now, you can plug in all of the values for length (x+7), width (x) and height (x) into this formula, and put 384 on the left hand side, because it's the surface area we are given. Now, you can solve for x and get specific values for length, width, and height.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.