Question

How do you convert 7.8 km to miles?

Answer 1

$\text{Explanation}$

$5\text{miles}=8\text{km OR mile =8/5km Or 1 km =5/8 mile}$

$\text{For the same distance, the number of miles is less than the number of km.}$

$7.8\text{km}\times \frac{5}{8}=4.875\text{miles}$

$\text{Or by direct proportion}:$

$\frac{\text{miles}}{\text{km}}=\frac{x}{7.8}=\frac{5}{8}$

$x=\frac{7.8\times 5}{8}$

$x=4.875\text{miles}$