ciara180
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What is the first step that you have to do in order to solve the proportion: 1 inch/10 miles = 7 inches/z miles

10 * z = 1 * 7

1 * z = 10 * 7

7 * z = 10 * 1

1 * 7

Respuesta :

Luv2Teach

If your proportion is [tex] \frac{1}{10}=\frac{7}{z} [/tex], you cross multiply to solve for z: 1 * z = 10 * 7, second choice above

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