Julie uses 12 ounces of cheese and potato soup recipe recipe yields 8 servings if Julie needs enough for 20 servings how many pounds of cheese will she need

Convert the number of ounces in to pounds.

so 12 ounces equal 0.75 pounds

now put in a proportion

Lbs

Servings so 0.75 = x

8 20

now just cross multiply

0.75 x 20 = 8x

no solve the eqaution

15 = 8x

divide 8 into 15 and 8 to cancel out the 8

x = 1.875

So she needs 1.875 lbs of cheese and round if needed