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Roger makes 70 gallons of pink paint by mixing 21 gallons of white paint. what part of every gallon is from red paint?

User Mouze
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There are 49 gallons of red paint.
I figured it out by doing the following:


70 \: - \: 21 \: = \: 49
If you subtract the gallons of pink paint (21) from the total number of gallons (70), then you get the number of gallons of red paint (49) because 49 + 21 = 70. I hope that helps :)
User Sanah
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