A roof repairer works out that he will need to work with a colleage charges $20 per hour. In the end, they took 6 hours to fix t

Question

3 years ago

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A roof repairer works out that he will need to work with a colleage charges $20 per hour. In the end, they took 6 hours to fix t

he roof.
a. Write an expression with parentheses to describe how much the homeowner ownes for labor.

b. Evaluate your expression to calculate the cost of the labor.

Mathematics

1 answer:

ser-zykov [4K] · Answer 1 · 2022-03-13T10:56:37+03:00

a) 20(x)=y

b) $120

Let x= number of hours

Let y= Cost of labor

20 will remain constant, what matters is how many hours are being worked. If it's $20 per hour then it's safe to assume 1 hour is 20 dollars worth of labor. Due to it being per hour you have to multiply the rate by however many hours worked to get your final cost.