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3 years ago

. The land area of Charlotte, NC is approximately 3 x 102 square miles.

Mathematics

1 answer:

lidiya [134]3 years ago

7 0

Answer:

Option A

Step-by-step explanation:

Land area of Charlotte, NC = $3\times 10^2$ square miles

Scale to be used,

1 square miles = $6.4\times 10^2$ square acres

By this scale,

$3\times 10^2$ square miles = $(6.4\times 10^2)\times(3.2\times 10^2)$ square acres

= $(6.4\times 3)\times 10^{2+2}$

= $19.2\times 10^4$ square acres

= $1.92\times 10^5$ square acres

Therefore, Option A will be the correct option.

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Answer: Approximately 6.3876 years

When rounding to the nearest whole number, this rounds up to 7 years.

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Work Shown:

We'll use the compound interest formula

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where,

A = amount of money after t years
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In this case, we know that,

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So,

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