Yes. Since 12 3/4 cups can be rounded up to 13 and 6 5/6 can be rounded up to seven, and 13+7 equals 20, so you would be able to put the additional amount if cups into the cooler.
If your asking for what that would be called cause I don't understand what your asking but it would be called the midpoint
Answer:-5/7,-4/7,-3/7,-2/7
Step-by-step explanation:
2x-y=0 Y=x-1 2x-x-1=0 x-1=0