To determine if their ratios of the purple mixture are equivalent, we need to compare the ratios of blue to red in their mixtures.
Aria's ratio of blue to red is 7:2.
Cody's ratio of blue to red is 21:6, which simplifies to 7:2 as well.
Since both ratios are the same, their ratios of the purple mixture are equivalent to one another.
Cody and aria are painting a mural. They decide they want part of the mural to have a purple background. Aria uses 7 tbsp. of blue to 2 tbsp. of red to make her purple paint. Cody is planning to use more and uses 21 tbsp. of blue to 6 tbsp. of red. Are their ratios of purple mixture equivalent to one anothers?
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