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David's company reimburses his expenses on food, lodging, and conveyance during business trips. The company pays $60 a day for food and lodging and $0.65 for each mile traveled. David drove 600 miles and was reimbursed $3,390.

Part A: Create an equation that will determine the number of days x on the trip (3 points)

Part B: Solve this equation justifying each step with an algebraic property of equality. (6 points)

Part C: How many days did David spend on this trip? (1 points)

Sagot :

60d=3390-(600/0.65)
60d=(3390/1)-(600/0.65)
60d=(2203.5/0.65)-(600/0.65)
60d=1603.5/.65
60d/60=(1603.5/0.65)/(60/1)
d=(1603.5/0.65)(1/60)
d=1603.5/39
d≈41.115

David spent a little more then forty-one days on his trip

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