Question

You buy butter for $3 a pound.

One portion of onion compote requires 1.7 oz of butter.
How much does the butter for one portion cost? Round to the nearest cent.

Answer 1

There are 16 ounces in one pound.

Set up a proportion and solve for x.

3/x = 16/1.7

16x = 3(1.7)

16x = 5.1

x = 5.1 ÷ 16

x = 0.31875

Rounding to the nearest cent, we get 30 cents.