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Which shop is cheaper if the job takes 2 hours? 3 hours?‚Äč

Algebra
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A Shop charges $149 for parts and $53 per hour of labor for a repair job. A repair shop charges a fee of $280 for the same job. Write a system of equations to represent the situation. Which shop is cheaper if the job takes 2 hours? 3 hours?

Dec 10th, 2014

149+53x=280

for 2 hours 149 + 53*2

                    149+106

                     $255 (shop charges is cheaper)

for 3 hours 149+53*3

                    149+159

                      $308 (repair shop is cheaper)


Dec 10th, 2014

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Dec 10th, 2014
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