SAT Math Practice Question #26453 - SATify | SATify

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SAT Math Practice Question #26453 - SATify | SATify

#26453

algebra

systems

Relative Motion

medium

120 sec

Positive real numbers $x$ and $y$ satisfy $x^{3} = y^{4}$ and $(x + y)^{2} = 16 y^{2}$ . What is $x - y$ ?

A.

27

B.

54

C.

81

D.

108

E.

135