To make 150 cupcakes, you use 1360.78 grams of dry ingredients. 22% of the dry mixture is sugar. How many ounces of sugar is in one cupcake? round your answer to the nearest hundredth.
you can solve this by using a rule of three.
Step 1
if 1360.78 gr is our 100%, and 22% is sugar, how many sugar is in it?

solve for x

so, 22% of the dry mixture is 299.37 gr of sugar.
Step 2
to make 150 cupcakes you use 299.37 gr of sugar , how many sugar for (1) cupcake?
again, we can use a rule of three

solve for y

so, for every cupcake you use 2 grams of sugar.
Step 3
convert grams into ounces
remember
1 gram =0.035274 ounces
use a rule of three

solve for w

so, in one cupcake there are 0.07 ounces of sugar