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balu736 [363]
3 years ago
9

A plumber charges $70 per hour plus $40 for the call. what does he charge for 4 hours of work

Mathematics
2 answers:
Verizon [17]3 years ago
8 0

The answer is $320.


In order to solve this, you can start off by turning this word problem into an expression.


$70x → $70 per hour (x represents the amount of hours)

+40 → plus $40 for the call


Substitute the x for 4 and solve the equation.

70x+40

70(4)+40

280+40

320


The plumber charges $320 for 4 hours of work.

Sliva [168]3 years ago
3 0
Y = 70x + 40

≛ x represents the number of hours worked
≛ 70 represents the amount of money per hour
≛ 40 represents the money for the call
≛ y represents the total amount of money charged

70(4) + 40 = 320

After 4 hours of work, the plumber charged $320

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