For Emma's lemonade recipe, 9 lemons are required to make 18 cups of lemonade. At what rate are lemons being used in lemons per cup of lemonade?

1:2

A rate of 1 lemon per two cups of lemonade

Step-by-step explanation:

9 lemons for 18 cups can be seen as:

Simplify by dividing both numbers by 9:

So, one lemon is used for two cups of lemonade. Half a lemon for 1 cup of lemonade...

i dont know sorry

step-by-step explanation:

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.