Question

Find each percent decrease. round to the nearest percent:

From 95°F to 68°F.



And


Nathan usually drinks 36 ounces of water per day. He read that he should drink 64
ounces of water per day. If he starts drinking 64 ounces, what is the percent increase?

Answer 1

Your first question: 28% decrease

Your second question: 78% increase

Explanation:

general process for both of these will be

1. find the change (final - initial)

2. divide change by initial

(***final means at the end & initial means at the start.)

so for your first question....

1. find the change (final - initial)

final - initial = ?

68 - 95 = -27

2. divide change by initial

-27/95 = -.2842105263 ≈ -28% ===> that's a 28% decrease.

now let's solve the second problem:

1. find the change (final - initial)

final - initial = ?

64 - 36 = 28

2. divide change by initial

28/36 = 0.77777777777 ≈ 78% ===> that's a 78% increase.