Question

A diver ascended 8/9 of a meter in 1/9 of a minute. What was the divers rate of ascent in meters per minute?

Answer 1

The ration between the ascent and time is 8/9 is to 1/9. To get the rate per minute, your aim is to get an equal ratio using a full minute. A full minute would be 9/9. Now how do we get 9//9, you multiply 1/9 by 9.

$\frac{1}{9}*9 = \frac{9}{9}=1$

Now to get an equal ration, you need to multiply the ascent by the same factor. So you would multiply 8/9 by 9 as well.

$\frac{8}{9}*9 = \frac{72}{9} =8$

So the rate would be 8 meters per minute.