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enyata [817]
3 years ago
7

4. A bike rental company rented out 8 bikes in its first month. The company increased the number of bikes it rented each month b

y 2%. What was the approximate total number of bikes the company will rent out for the first 9 months?
50

59

68

78
Mathematics
1 answer:
DanielleElmas [232]3 years ago
4 0
This is a geometric sequence:

First month: 8
Second month: 8 * 1.02
Third month: 8*1.02^2
Fourth month 8* 1.02^3
...
nth month: 8 * 1.02 ^(n-1)

Sum of the first 9 terms (months) = a[1 -r^n] / (1 - r) = 8* [1 - 1.02^9] / (1 - 1.02) = 78.04

Answer: approximately 78 bikes.
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<h3>What is an equation?</h3>

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