Question

3/7 = 9/x and 5/8 = 12.5/x

Answer 1

Answer: x = 21 and x = 20

Explanation:

To solve for x in both of these equations, we can cross-multiply and isolate the variable.

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Given:

`\displaystyle (3)/(7) =(9)/(x)`

Cross-multiply:

3 * x = 9 * 7

3x = 63

Divide both sides of the equation by 3:

x = 21

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Given:

`\displaystyle (5)/(8) =(12.5)/(x)`

Cross-multiply:

5 * x = 8 * 12.5

5x = 100

Divide both sides of the equation by 5:

x = 20