You buy butter 4.13 a pound one portion of onion requires 1.7 oz of butter how much dose the butter for one portion cost

The butter for one portion of onion costs $ 0.44

Step-by-step explanation:

Let's recall that 1 pound = 16 ounces, therefore we have:

Cost of one pound of butter = $ 4.13

Cost of sixteen ounces of butter = $ 4.13

How much dose the butter for one portion cost?

We can use Direct Rule of Three for answering this question, as follows:

Ounces       Cost

  16                4.13

  1.7                   x

16x = 4.13 * 1.7

16x = 7.021

x = 7.021/16

x = 0.44 (Rounding to the next cent)

The butter for one portion of onion costs $ 0.44