CROSS MULTIPLY AND DIVIDE - UrbanDine

When two fractions are equal to each other, any unknown numerator or denominator can be found. ... Judd can buy three 8-foot pieces of lumber for $2.60 each, or four 6-foot pieces for $1.92 each. Which is the better buy? Hint: each option is 24 feet so find that total cost. ... The final price is calculated by adding the tax amounts to the ... ................
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