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Feliz [49]
2 years ago
13

I NEED HELP PLEASE!!

Mathematics
2 answers:
Nimfa-mama [501]2 years ago
7 0

Answer:

f=15

Step-by-step explanation:

set 2.5 over 1 to make it a fraction and cross multiply

nadya68 [22]2 years ago
3 0
Yea it’s correct f=15
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mike charges 100 dollars service charge plus 65 dollars per hour.  

amy charges 40 dollars service charge plus 80 dollars per hour.  

the cost to repair from mike is 100 + 65 * x.  

the cost to repair from amy is 40 + 80 * x.  

let x = 3 and you get:  

the cost to repair from mike is 100 + 65 * 3 = 295 dollars.  

the cost to repaid from amy is 40 + 80 * 3 = 280 dollars.  

as long as the time to repair is 3 hours or less, the cost to repair will be cheaper from amy.

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2 years ago
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Step-by-step explanation:

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