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Answer: DSet 4: Ratios Rates Proportions (Beginner)
Explanation
PROBLEM
If x:y = 6:2 and x = 18, find y.
If x:y = 6:2 and x = 18, find y.
A.
3
B.
5
C.
9
D.✓ Correct
6
Detailed Explanation
Choice D is the best answer. x/y = 6/2. 18/y = 6/2. y = 18 times 2/6 = 6
Why others are wrong:
A: 3 is incorrect because it does not satisfy the equation.
B: 5 is incorrect because it does not satisfy the equation.
C: 9 is incorrect because it does not satisfy the equation.