SOLUTION: mary wants to buy a bike for $270. she already has $165. if her job pays $15 per hour, how many hours will she have to work to earn the rest of the money?
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Question 936449: mary wants to buy a bike for $270. she already has $165. if her job pays $15 per hour, how many hours will she have to work to earn the rest of the money? Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! savings account balance:
y = 15x + 165
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hours needed to buy the bike:
270 = 15x + 165
15x = 270 - 165
15x = 105
x = 105/15
x = 7 hours
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