Renaldo is making purple paint using red and blue paint. The ratio of red paint to blue paint is 5 to 4. If Reynaldo has 6 quarts of blue paint, how much red paint does he need?
Renaldo is making purple paint using red and blue paint. The ratio of red paint to blue paint is 5 to 4. If Reynaldo has 6 quarts of blue paint, how much red paint does he need?
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Let's set this up as a ratio......
5 /4 = (quarts of red paint) / (quarts of blue paint) so we have
5 / 4 = x / 6 where "x" is the number of quarts of red paint we're looking for
Cross-multiplying, we have
30 = 4x divide both sides by 4
x = 7.5
Renaldo is making purple paint using red and blue paint. The ratio of red paint to blue paint is 5 to 4. If Reynaldo has 6 quarts of blue paint, how much red paint does he need?
----------------------------------------------------------------------------------------------------------------------------
Let's set this up as a ratio......
5 /4 = (quarts of red paint) / (quarts of blue paint) so we have
5 / 4 = x / 6 where "x" is the number of quarts of red paint we're looking for
Cross-multiplying, we have
30 = 4x divide both sides by 4
x = 7.5