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Sofie Ruth is eating a 50 gram chocolate bar which contains 30 percent of cocoa. How many grams of cocoa are in the chocolate bar?
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Mar 26, 2019
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Sofie Ruth is eating a 50 gram chocolate bar which contains 30 percent of cocoa. How many grams of cocoa are in the chocolate bar?
Mathematics
middle-school
Tomas Skogberg
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Hi!
Let's set up a proportion to solve this.
Cross multiply to solve for x.
50 * 30 = 1500
1500/100 = 15
The answer is 15 grams of cocoa.
Hope this helps! :)
-Peredhel
Bubjavier
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Mar 27, 2019
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Bubjavier
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Hello!
You have to find 30% of 50.
You can make a proportion. 30% = 30/100
Cross multiply
30 × 50 = 1,500
Divide by 100
1,500 ÷ 100 = 15
Jonathan Holvey
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Mar 29, 2019
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Jonathan Holvey
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