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A caterer needs to buy 21 pounds of pasta to cater a wedding. At a local store, 8 pounds of pasta cost $12. How much will the caterer pay for the pasta there? 1. Write a ratio for the given information about the cost of pasta. 2. Would it be more helpful to write an equivalent ratio with 1 pound of pasta as one of the numbers, or with$1 as one of the numbers? Explain your reasoning, and then write that equivalent ratio.

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1.    12 dollars to 8 pounds; 12 dollars for every 8 pounds; 8 pounds to $12 2. It be more easier and helpful to write an equivalent ratio with 1 pound of pasta as one of the numbers. The cost of 1 pound can be easily determined by dividing$12 by
8 and the result (the unit rate) can be multiplied by 21. The final ratio is 1.50 dollars to 1 pound of pasta.

3.    21 pounds of pasta would cost 21 x 1.50 = \$31,50.
by Diamond (38,758 points)