Question if-whi
3.1 Ratios, Rates, and Proportional Relationships - Direct/inverse proportionality
0:00
If 
, which of the following is equivalent to 
?
A.
B.
C.
D.
If , which of the following is equivalent to ?
Easy-difficulty · SAT Math · Ratios, Rates, and Proportional Relationships — Direct/inverse proportionality. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice A is correct. It’s given that . Multiplying both sides of this equation by 2 yields 
, or 
.
Choice B is incorrect and may result from dividing, instead of multiplying, the right-hand side of the equation by 2. Choices C and D are incorrect and may result from calculation errors.
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