A car wash machine cleaned 20 cars in 50 minuets at this rate how many minutes will it take the machine to clean 1 car

For this case what we should do is define variables:

x: time in minutes

y: number of clean cars

We then have the following equation:

y = (20/50) x

For 1 car we have:

1 = (20/50) x

Clearing x:

x = 50/20

x = 2.5 minutes

Answer:

It will take the machine to clean 1 car а bout:

x = 2.5 minutes