SOLUTION: Hartley opened a food truck business to sell food on the street. On day 2, the business earned $112. On day 5,the business earned $367. Hartley assumes that his earnings will con

Question 787693: Hartley opened a food truck business to sell food on the street. On day 2, the business earned $112. On day 5,the business earned $367. Hartley assumes that his earnings will continue to increase at the same rate. How much will the business earn on day 10?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Hartley opened a food truck business to sell food on the street. On day 2, the business earned $112. On day 5,the business earned $367. Hartley assumes that his earnings will continue to increase at the same rate. How much will the business earn on day 10?
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gross gain for 3 days: 367-112 = 255
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Calculate percent gain per day::
367 = 255(1+x)^3
1.4392 = (1+x)^3
1+x = 1.129
x = 0.129
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How much will the business earn on day 10?
255*1.129^10 = 255*3.3646 = $857.98
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Cheers,
Stan H.
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