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3 years ago

5

Solving proportions

d="TexFormula1" title=" \frac{1\3}{5} = \frac{a}{20} " alt=" \frac{1\3}{5} = \frac{a}{20} " align="absmiddle" class="latex-formula">

1 answer:

Olegator [25]3 years ago

8 0

Answer:

a = 4/3

Step-by-step explanation:

1/3 a

----- = -----

5 20

Using cross products

1/3 * 20 = 5a

20/3 = 5a

Divide each side by 5

20/3 * 1/5 = 5a/5

4/3 = a

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