Homework Help: Math/Fractions

Posted by Mary Mac on Friday, May 2, 2008 at 12:51pm.

I really need help with this problem. I have NO IDEA how to get the answers to 3 and 5.

Benjamin and Olivia are putting in a new floor in thier kitchen. To get the floor up to the desired height, they need to add 1 1/8 ft. of subfloor. They can do this in one of two ways. They can put 1/2 in. sheet on top of 5/8 in board (note that the total would be 98 ft or 1 1/8 ft). They could also put 3/8 in. board on top of 3/4 in sheet.
The table below gives the price for each sheet of plywood from a Home Depot store.

Thickness price
1/8 in. $9.15
1/4 in. $13.05
3/8 in. $14.99
1/2 in. $17.99
5/8 in. $19.13
3/4 in. $21.36
7/8 in. $25.23
1 in. $28.49

1. What is the combined price for a 1/2 in. sheet and a 5/8 in. sheet?
I got $37.01

2. What is the combined price for a 3/8 in sheet and a 3/4 in. sheet?
I got $36.35

3.What other combination of sheets of plywood yields the needed 1 1/8 -in. thickness?
4. Of the four combinations, which is most economical?

5.The kitchen is to be 12 ft 12 ft. Find the total cost of the plywood you have suggested
in question 4.

I have no idea how to come up with the last three answers. I dont want the answers, I just want to know HOW to work these problems. Any help would be greatly appreciated. Thanks!

Math/Fractions - msp, Friday, May 2, 2008 at 1:09pm
First of all, check you answer for number 1 and make sure it's correct.
3. You need two sheets that equal 1 1/8 in. or 9/8 inches. So,
1 in. and 1/8 in. = 1 1/8
7/8 in. and 1/4 (or 2/8) = 9/8
3/4 (or 6/8) and 3/8 = 9/8
1/2 (or 4/8) and 5/8 = 9/8
Okay, I gave you that part. Now, for number 4. Figure out the cost for each of these, the cheapest will be the most economical. Then for 5, take this least amount and multiply it by the area of the floor (24 x 24)
Hope this helps! Good luck!
- Math/Fractions - gertrude, Friday, October 3, 2008 at 8:16pm
  i am still confuse
dcafpnue yqxesa - dcafpnue yqxesa, Sunday, February 1, 2009 at 9:58pm
dmfpayht gbpfaiev zxtu rbymopth jlghobkw gsfjvc tbjdfml
xgtevkb lupeo - xgtevkb lupeo, Thursday, February 5, 2009 at 4:55am
ewkl tlfw vtrapfkb duetfkbn mezpy eflqxbpa qlezjum

Answer this Question

Related Questions

math: percent and fractions - Can you give me two examples of two realistic ...
Math - I need help on adding up fractions that denomonators arent the same HELP
Biology - How does a theory provide a framework for the way scientific ...
Math--Algebra 1 - I really need help on this problem. I'm unable to ...
mathematics - Need help with this math problem please. Work need to be show but ...
math - how do u divide fractions? i really need help with this. i need to know ...
math fractions - ADAM WANTS TO COMPARE THE FRACTIONS 3/12,1/6,AND1/3.HE WANTS TO...
Calculus - f(x) = [3/x^2] - [5/x^7], F(x) is the antiderivative of f(x) with F(1...
English rep of an algebraic problem - Hello, I need HEEEELP. I need to create ...
math/algebra - Subtract: express your answer in simplest form. 2/5 - y/y-2 ...

For Further Reading

First Name:
School Subject:
Answer: