If x/y = (3/2)^-2 ÷ (3/7), find the value of (x/y)^-3.
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Answer:
19683/19600
Step-by-step explanation:
x/y= (2/3)²÷3/7
=4/9×7/3
=28/27
(x/y)^-3
=(28/27)^-3
=(27/28)^3
=19683/19600
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