Answer:
91.2 ounces
Step-by-step explanation:
Let's make a proportion using this setup:
ounces/boxes=ounces/boxes
There are 57 ounces in 5 boxes, and x ounces in 8 boxes.
57 ounces/5 boxes= x ounces/8 boxes
57/5=x/8
Now we have to solve for x. x and 8 are being divided. To undo this, multiply both sides by 8, because multiplication is the opposite of division.
8*57/5=x/8*8
The 8s on the right will cancel, so we are left with:
8*57/5=x
8*11.4=x
91.2=x
There are 91.2 ounces in 8 boxes
