a roofer charges $60 for the first hour of service call and $25 per hour for each additional hour. The roofer also charges a fee

Question

2 years ago

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a roofer charges $60 for the first hour of service call and $25 per hour for each additional hour. The roofer also charges a fee

for all materials used plus 30% over the cost of the materials. Let r-roofer's cost of materials and h= number of hours worked. What expression could be used to find the cost of a service call

Mathematics

1 answer:

Temka [501] · Answer 1 · 2022-07-19T08:13:23+03:00

Answer:

Step-by-step explanation:

let y be the total charges

given that the hour is h

and the cost for raw material is r

therefore

1. The first hour of service call = $60

2. For each additional hour= 25h

3. 30% over the cost of the materials.= 30/100*r=0.3r

total charges

y=60+25h+0.3r

therefore the expression is

y=60+25h+0.3r