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jlgdr
If y is decreased by 20% and then increased by 60%, what is the new number, expressed in terms of y?

OA is

The new number is y x 0.8 x 1.6 = 1.28y.

Alternate Solution:

Assume y = 100. After the 20% decrease, the new value is 100 x 0.8 = 80. Then, after the 60% increase, the new value is 80 x 1.6 = 128. Thus, the new value is 1.28 times the original value of y, so we express the new value as 1.28y.

Answer: 1.28y
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the new number is y x 0.8 x 1.6 = 1.28y.
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