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Carlos mixed 3 1⁄2 cups of red paint with 4 1⁄2 cups of yellow paint to make an orange paint. How many cups of red paint and how many cups of yellow paint will Carlos need to make 12 cups of the same shade of orange paint?

 Jul 13, 2020
 #1
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Ratio of red to yellow    3.5 : 4.5       3.5  out of 8 are red    or   3.5/8

 

3.5/8  * 12 cups = 5 . 25 cups    or    5 1/4 cups red

 Jul 13, 2020
 #2
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Did you forget the 2nd step for the number of cups of yellow paint?

[4.5 / 8 ] * 12 =6.75 cups of yellow paint.

 

5.25 red + 6.75 yellow =12 cups of orange paint.

Guest Jul 13, 2020
 #3
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No, I don't think he forgot it! Do you see why? Because he thought the question asker should  easily get the 2nd step! 12 - 5.25 =6.75 yellow paint!

Guest Jul 13, 2020

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