Question 1137196
<br>
You should know the standard algebraic method for solving mixture problems like this, as shown by the other tutor.<br>
But here is a much easier and faster way to solve this problem (and MANY similar problems) with just a bit of mental arithmetic.<br>
The desired 17% concentration is 8/9 of the way from the lower 9% to the higher 18%.  That means 8/9 of the mixture must be the higher concentration.<br>
8/9 of 36 ounces is 32 ounces.<br>
ANSWER: 32 ounces of 18%; 4 ounces of 9%.