Question

_ percent 2½ hours is 45 minutes​

Answer 1

30%

Explanation:

Let's first convert the 2.5 hours into minutes so we have the same units.

1 hour = 60 minutes

2.5 x 60 = 150 minutes

Now we can use the percentage formula.

(value/total value) x 100 = percentage

Since the question is asking what percent of 2½ hours is 45 minutes​, we plug in the formula like this.

(45/150) x 100 = 30%

tadah!