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South Beaverton's Word Problem Wednesday
Jul 18, 2018
What’s your favorite campfire food? Here at Mathnasium we’re partial s’mores. Not just because they taste soooo delicious, or because they’re great fun to make, but also because they’re ideal for practicing math skills! Yes, you read that right, marshmallows and math skills go hand in hand. This week’s word problem challenge provides a fun and foodie opportunity to practice volume, percent, multiplication, and other middle school math skills.
Question: An unroasted marshmallow has a volume of 0.25π cubic inches. After Andrew roasts the marshmallow over a campfire, its volume is 150% its original volume. What is the post-roast volume of the marshmallow?
Go ahead and give it a try. Take your time, and when you’re ready, check below for the solution.
Solution: To find 150% of 0.25π, we can multiply the 1.5 by 0.25 and then by π: 1.5 multiplied by 0.25 is 0.375, and 0.375 multiplied by π is 0.375π. So, the volume of the roasted marshmallow is 0.375π cubic inches.
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