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One calculator is discounted by 30% and now costs $42
another is discounted by 25% and now costs $42 dollars as well
which calculator had the cheaper original price? How much cheaper?

Respuesta :


X*0.3 = 42
X=42/0.3 = 140

X*0.25 = 42
X=42/0.25 = 168

168-140= 28

30% one by 28.


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