SOLUTION: Your cousin installs weather stripping for x dollars per foot and insulation for (x + 5) dollars per foot. This week he installed 480 feet of weather and stripping and 2200 feet of

Question 119243This question is from textbook California Middle School Mathematics Concepts and Skills Course 2
: Your cousin installs weather stripping for x dollars per foot and insulation for (x + 5) dollars per foot. This week he installed 480 feet of weather and stripping and 2200 feet of insulation. His expenses are 7500$. His profit is 11,540$. Find the prices your cousin charges to install insulation and weather stripping. This question is from textbook California Middle School Mathematics Concepts and Skills Course 2

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Your cousin installs weather stripping for x dollars per foot and insulation for (x + 5) dollars per foot. This week he installed 480 feet of weather and stripping and 2200 feet of insulation. His expenses are 7500$. His profit is 11,540$. Find the prices your cousin charges to install insulation and weather stripping.
---------------
Income: 480x + 2200(x+5)
Expenses: 7500
Profit: 11,540
------------------
EQUATION:
Income - Expenses = Profit
480x + 2200(x+5) - 7500 = 11540
480x + 2200x + 11000 - 7500 = 11540
2680x + 3500 = 11540
2680x = 8040
x = $3 (price per foot for weather stripping)
x+5 = $8 (price per foot for insulation)
================
Cheers,
Stan H.

RELATED QUESTIONS
Sam has 15 identical rectangular windows in his home. The length of each window is twice... (answered by Cromlix)

This week Alison worked for x+4 hours. She earns x-4 dollars per hour. Write a polynomial (answered by jim_thompson5910)

Can anyone help me with this word problem? I've got two freezers one measures 1.5ft x... (answered by jim_thompson5910)

A carpenter purchased 60 ft of redwood and 70 ft of pine for a total cost of $276. A... (answered by josgarithmetic)

please help me solve this problem. I just started this math class and I am already... (answered by mananth)

Suppose that you are a mathematician for Well Oils Production ,Inc. Your company is... (answered by psbhowmick,boptop35)

you make 300 dollars per week and 10 dollars per sale, the total earned for the week is... (answered by ad_alta)

16. One freezer measures 1.5 ft * 1.5 ft * 5 ft and sells for $350. Another freezer... (answered by jim_thompson5910)

I want to rent 65 thousand square feet for 12 dollars per foot per month. What is the... (answered by rfer)