Olivia spent 3 hr 20 min studying for her history test.
What percent of 500 minute did she study for her history test.

40%

Step-by-step explanation:

The first step is to convert 3 hours and 20 minutes to minutes. Since there are 60 minutes in an hour, multiply 60 by 3 to get 180. Then, add to the 20 leftover minutes to get 200. The ratio so far is 200:500. To make this simpler, rewrite the ratio as 20:50. Next, multiply each number by 2 to get a percentage out of 100. We get 40:100, or 40 out of 100. This means that the percentage is 40%.

20

step-by-step explanation:

here is the

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