Roger has 2 1/2 cups of butter. A recipe for a loaf of bread requires 3/4 cup of butter. How many loaves can Roger bake?
2 answers:
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Take the root of both sides, and then solve.
c = sqrt a^2 + b^2, - sqrt a^2 + b^2.
c = sqrt a^2 + b^2, - sqrt a^2 + b^2.