3 years ago

Why can you multiply or divide both terms of a ratio by the same number without changing the value of the ratio?

1 answer:

5 0

3:4 = 6:8

$\frac{3}{4} = \frac{6}{8}$

The same principle is used with fractions. The identity property of multiplication states that any number times 1 is the same number. Since $\frac{2}{2}$ = 1, the fraction/ratio does not change in value.

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x=4 ⇒ n(4) = 200 (1.04)^4 = 233.97
x=15⇒n(15)=200(1.04)^15 = 360.19

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