Question

An oatmeal recipe calls for 4 cups of oats for every 3 cups of milk. If you want to use 9 cups of oats, how much milk would you need to use?

Plz show your work.

Answer 1

`9 (3)/(4)` sups of milk

Explanation:

It is given that;

4 : 3 (this represents the proportion of cups of oats to cups of milk)

Now one has to find how many cups of milk will correspond with 9 cups of oats.

First, convert the given ratio to a unit ratio,

4 : 3

/4 /4

1 :
`(3)/(4)`

Now multiply the entire ratio by 9 to find out how many cups of milk corresponds to 9 cups of oats;

9 :
`(39)/(4)`

Simplify;

9 :
`9 (3)/(4)`