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If 6 can costs $3,how much will 24 cans cost?

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JthanSCOUTviz
Write the given as a ratio:
6:3=24:x        Multiply the means and extremes (The outer terms and inner terms)
6·x=24·3
6x/6=72/6      Simplify
x=12
Then, 24 cans cost 12$