Cooking With the Whole Cup
CCSS 7.RP
Name __________________________________
Period _____
Travis was attempting to make muffins to take to a neighbor that had just moved in down the street.
The recipe that he was working with required
3
1
cup of sugar and cup of butter.
4
8
1. Travis accidentally put a whole cup of butter in the mix.
a. What is the ratio of sugar to butter in the original recipe?
b. What amount of sugar does Travis need to put into the mix to have the same ratio
(equivalent ratio) of sugar to butter that the original recipe calls for (Use a ratio table)?
c. The original recipe called for
3
cup of blueberries. What is the ratio of blueberries to butter
8
in the recipe? How many cups of blueberries are needed in the new enlarged mixture (Use a
ratio table)?
2. This got Travis wondering how he could remedy similar mistakes if he were to dump in a
single cup of some of the other ingredients. Assume he wants to keep the ratios equivalent.
a. How many cups of sugar are needed if a single cup of blueberries is used in the mix
(Use a ratio table)?
b. How many cups of butter are needed if a single cup of sugar is used in the mix (Use a
ratio table)?
c. How many cups of blueberries are needed for each cup of sugar?
3. Using concentrated weed killer. Sammy was trying to make a mixture to spray the weeds in
1
her yard. The instructions on the back of the container said “for best results, mix cup weed
2
3
killer for every cup of water.
4
a. If Sammy uses 2 cups of weed killer, how many cups of water will she need to keep
the ratios equivalent (Use a ratio table)?
b. How many cups of weed killer will Sammy need to keep the ratios equivalent if she
uses 10 cups of water (Use the same ratio table)?
4. When making hot chocolate, Evan prefers the mixture of
1
1
cup of cocoa mix to every cup
8
2
of water.
a. If Evan is going to use
(use a ratio table)?
5
cups of cocoa mix, how many cups of water does he need
8