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Dmitrij [34]
3 years ago
9

A useful rule of thumb called the "rule of 70" states that if something grows at a constant rate of z percent per year, it doubl

es in size approximately every __________ years.
a. z/70
b. 70/z
c. 70 - z
d. 70 × (z/100)
Mathematics
1 answer:
vesna_86 [32]3 years ago
4 0
<span>The answer is b. (70/z). If I put $100 into a savings account and the annual growth rate is 10%, the 70/10%= 7 years that the initial $100 would take to double.</span>
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Step-by-step explanation:

<em>In a plane xy, the equation that represents a circle with center in the origin, of radius r is</em>

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tensa zangetsu [6.8K]

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Step-by-step explanation:

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