Preston's Health Foods makes a mixed nut blend that contains 26% cashews. Simon, one of the workers at the plant, has 9 kilograms of nuts that are 30% cashews. He also has a large supply of mixed nuts that contain 22% cashews. How many kilograms of the 22% cashew mix does Simon need to add to the 30% cashew mix to obtain a mix that is 26% cashews?
Correct answer: C
Explanation
0.3(9) + 0.22x = 0.26(9 + x)
2.7 + 0.22x = 2.34 + 0.26x
2.7 – 0.04x = 2.34
-0.04x = -0.36
x = 9
Answer is C.
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