Answer:
So she need more to put in.
Step-by-step explanation:
Given:
Recipe for cookies calls for 3 1/4 cups of sugar.
Amy has already put three and one nine cups.
Now, to find the number of cups she need to put in.
Number of cups of sugar for recipe calls =
Amy has already put =
So, to get the number of cups she need to put in we subtract number of cups of sugar for recipe calls from number of cups of sugar for recipe calls:
Subtracting by taking the same denominator:
Therefore, so she need more to put in.
Answer:
Pool A.
Step-by-step explanation:
This can be solved through ratios. You would write it as So, for the first one, and for the second. You might want to use a calculator for that part, but you could also change the gallons to cups, which gives you a much better number of 10.515. So, , and So, pool A is at a faster rate. If you want it in gallons per minute, it's by 0.01 (with the 1 repeating) gallons per minute. By cups, it's 0.17525 cups per minute.
(The reason I did not do this by cross multiplying and dividing ratios is because it gives you the exact same answer if you are finding it per one, as I am here with per one minute. You can do it this way, it just wastes a bit of time.)