3.2+Helping+the+Cook

3.2 and Follow Up A. Question: How many cans of tomatoes would you advise the cook to buy to make spaghetti for the 240 campers? Explain your answer. Answer: She would need 40 cans for all the 240 campers because 1 can takes care of 6 campers and 6 divided by 240 is 40.

B. Question: How much would these cans of tomatoes cost altogether? Answer: All the cans in total would cost 32 dollars because 40 divided by 5 is 8 and 8 multiplied by 4.00 is 32.

Follow Up 1. Question: At Eatmore grocery store, you can buy seven cans of tomatoes for 6.00 dollars. The cans are the same size as the cans at CannedStuff. Are the tomatoes at Eatmore a better buy than the tomatoes at CannedStuff? Explain your answer. Answer: The tomatoes at Eatmore are better buy if your goal is to buy as many cans as possible with the least amount of money, because at Eatmore you get 7 cans for 6 dollars and 7 divided by 6 is 1.16, so that means that one can at Eatmore is 1.16 dollars. Then the cans at CannedStuff are 4.00 dollars for 5 cans so 5 divided by 4 is 1.25 and 1.16 is smaller than 1.25, so Eatmore price is better.

2. Question: Gus was trying to figure out how to think about the Eatmore price of 7 cans of tomatoes for 6.00. He divided 7 by 6 and got 1.16666667. He then divided 6 by 7 and got 0.85714286. What does each of these numbers mean in the context of 7 cans of tomatoes for 6.00 dollars? Answer: If you divide 7 by 6 you get how much each can costs, but if you divide 6 by 7 you get how many cans for 1 dollar.