Question

at an amusement park Corey spends 7 minutes on a ride for every 20 minutes he spends waiting in lines if he wants in line for 60 minutes how many minutes does he spend on rides

Answer 1

We can pose the question in the following way:

`(7)/(20)=(x)/(60)`

Because we have two directly proportional amounts and the ratio is constant. Then, solving the latter proportion, we have:

`x=(7\cdot60)/(20)\Rightarrow x=7\cdot((60)/(20))\Rightarrow x=7\cdot3\Rightarrow x=21`

Then, Corey will spend 21 minutes on rides if he plans to spend 60 minutes in lines (according to the given proportion).