The price of an item yesterday was . Today, the price rose to . Find the percentage increase.
1 answer:
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Answer:
x = 19
Step-by-step explanation:
= 64
= 4³
multiply each side by the exponent 2/3 so the radical sign on left is removed
()^2/3 = (4³)^2/3
x - 3 = 4²
x - 3 = 16
x = 19