Question

After learning how to fly, Wendy reduced her daily commute time by 75% . Previously, her commute took m minutes.
Which of the following expressions could represent Wendy's commute time, in minutes, after she learned how to fly?

Answer 1

Answer: 0.25m and 1/4 m

Step-by-step explanation:

Wendy spends 75% x m fewer minutes commuting  daily than she used to.
That means wends spends m-75% x m minutes commuting

Because 75% means 75 per hundred, we can write it in equivalent forms.

75% = 75/100

       = 3/4

       = 0.75

m- 75% x m = 0.75m

=m(1-0.75)

=m(0.25)

=0.25m

=1/4m

The expressions 0.25m and 1/4m each could represent Wendy’s commute time, in minutes, after she learned to fly.