# algebra

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Company A charges \$55 per day plus \$0.35 per mile to rent a car. Company B charges \$50 per day plus \$0.40 per mile. Jack wants to rent a car for three days. How many miles should Jack be traveling so that Company A is less expensive than Company B?

• algebra -

A: cost= 3*55+.35m
B: cost=3*50+.40m

set the costs equal, and solve for m.

• algebra -

so 12(8)x â‰¥ 72
x â‰¥ 72/96
x â‰¥ 3/4 ft

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