Question

If 20miles is 1/2 inches how and there is 3.125 inches how many miles

Answer 1

125 miles

Explanation:

`(20)/((1)/(2))=(x)/(3.125)\\x=40 * 3.125=125 \\x=125~miles`

Answer 2

3.125 inches would result in 122 miles.

Explanation:

We can figure this out using proportions.

`(20 \: miles)/( (1)/(2) \: inches) = (x)/(3.125 \: inches) \\ \\ ( (1)/(2)x )/( (1)/(2) ) = (62.5)/( (1)/(2) ) \\ \\ x = 122`

122 miles would be the answer.