cupcakesryummy cupcakesryummy

22-03-2018
Mathematics

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The instruction booklet for a CD player says that the player uses about 0.2 kilowatt of electricity per hour. If electricity costs $0.30 per kilowatt hour, how much does it cost to run the player for an hour?

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VivaciousLyla VivaciousLyla

22-03-2018

Hello!

ANSWER:

The boxes weigh 112.5 lb altogether.

EXPLANATION:

Each box weighs 7.5 lb. We want to find out how much 15 boxes would weigh.

Multiply the weight of each box (7.5 lb) by the amount of boxes (15):

7.5 × 15 = 112.5

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