Question 1025706
<br>
Here is a solution using a non-traditional method that can be used to solve any 2-part mixture problem.  This method can be especially fast and easy if the numbers in the problem are "nice" (which in this problem they are....)<br>
(1) Use a number line if it helps to observe/calculate that 55% is 10/25 = 2/5 of the way from 45% to 70%.
(2) That means 2/5 of the mixture must be the 70% salt solution.<br>
2/5 of 70 ounces is 28 ounces.<br>
ANSWER: 28 ounces of the 70% solution and 70-28 = 42 ounces of the 45% solution.<br>