Concept explainers
To find: After how many hours will Andre and Paul charge the same amount.
Answer to Problem 15SGR
After 4 hours will Andre and Paul charges the same amount.
Explanation of Solution
Given information: Andre and Paul each mow lawns. Andre charges a $30 service fee and $10 per hour. Paul charges a $10 service fee and $15 per hour.
Formula used: Total cost T
Calculation:
Let they work for ‘ x’ hours.
For Andre
Fixed cost is $30
Variable cost is $
Total cost T
For Paul,
Fixed cost is $10
Variable cost is $
Total cost T=
When they charge same amount
Total cost of both of them becomes same.
So, the equation is
Solve the equation for ‘ x’ .
Subtract both sides 30
Subtract both sides
Divide both sides by -5.
Hence after 4 hours Andre and Paul charges same amount.
Chapter 3 Solutions
Glencoe Algebra 2 Student Edition C2014
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