70, Multiply 5 pieces by 12 friends and you get 60, then add the 10 pieces he originally took out, and you get 70
3.1
3.6
4.2
4.5
4.9
5.0
Hope it helps
5 7/8 is the answer to the problem
6 cups of flour is needed for a big batch of cookies that uses 9 cups of oatmeal
Step-by-step explanation:
For 3 cups of oatmeal 2 cups of flour is required.
We need to find how much flour is needed for 9 cups of oatmeal.
Solving by using Unitary Method
3 cups of oatmeal require flour = 2 cups
1 cup of oatmeal require flour = 
9 cups of oatmeal require flour = 
= 
So, 6 cups of flour is needed for a big batch of cookies that uses 9 cups of oatmeal
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After moving the 1 1/2 to the other side you will be able to solve it and get x=2