y is inversely proportional to x and y = 4, when x = 12 1 2 , find x when y = 10

Assessment: JAMB UTME - Mathematics - 2024 Subject: General Mathematics

Question 1 Report

y is inversely proportional to x and y = 4, when x = 12 1 2 , find x when y = 10
Answer Details
Explanation

y ∝ 1x 1 x

y = kx k x

y = 4, x = 12 1 2 , find x when y = 10

4 = k12 k 1 2

k = 2

Therefore, x = 210=15

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