Over the summer, Jackie played video games 3 hours per day. When school began in the fall, she was only allowed to play video games for half an hour per day What is the percent decrease? Round to the nearest percent.

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03-11-2017
Mathematics

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Over the summer, Jackie played video games 3 hours per day. When school began in the fall, she was only allowed to play video games for half an hour per day What is the percent decrease? Round to the nearest percent.

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dominiquewoodyoyco5d dominiquewoodyoyco5d · Answer 1 · 2017-11-03T02:10:05+01:00

the first thing you need to calculate is how much less time she plays per day. 3 hours - X = 30 minutesx = 2.5 hours Now that you know how much time has decreased, you need to figure out what percent of the original time the decreased time is. In other words, decreased time = x * 3 hours Plug in the decreased time to get:2.5 hours = x * 3 hoursx = 2.5/3x = 0.83333333333333 = 83.333333% rounds to 83%. Therefore, 30 minutes is a 83% decrease in playing time from the original time of 3 hours.