3.2+Helping+the+Cook+0910

11-20-09 Problem 3.2 - Helping the cook
 * Seung Hyun

Big Idea :** Many important practical and mathematical applications involve comparing quantities of one kind or another; it is important to know which method to use and how we should use them.


 * A. How many cans of tomatoes would you advise the cook to buy to make spaghetti for the 240 campers? Explain your answer.**

The cook would need 40 cans for 240 campers because the cook can make sauce for 6 campers from each can of tomatoes. Also it is 240 divided by 6 is 40.


 * B. How much would these cans of tomatoes cost altogether?**

All the can in total would cost $32. How to calculate = 40 cans divided by 5 is 8, 8 multiply 8 by $4 is $32.


 * 3.2 Follow up

1. At the EatMore grocery store, you can buy seven cans of tomatoes for $6. 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.**

The cans from EatMore is a better place to buy when you are going to buy as many as as many cans as possible for the least amount of money.


 * 2. Gus was trying to figure out how to think about the EatMore price of seven cans of tomatoes for $6. He divided 7 by 6 and got 1.1666667. He then divided 6 by 7 and got 0.8571486. What does each of these numbers mean in the context of seven cans of tomatoes for $6?**

If you divide 7 by 6 you would get how much each can costs, but if you divide 6 by 7, you would get how many cans for 1 dollar.