Question

The cheerleading squad at springfield high school had 20 memebers with the old coach now with the new coach there are 15 members on the squad what is the percent of decrease in squads size

Answer 1

25% decrease.
first let’s find how many have stayed. to do this, you will do,
15
—
20
which can be simplified to

3
—
4

because both can be divided by 5. but these are the people that stayed, were trying to find how many left. so, we will resort to our left over

1
—
4

which, in decimal form, is 0.25.
so, the squads size decreased by 25%
:)