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Which pair satisfies x + y > 10 but does not satisfy x > 5?

Answer and explanation

Correct answer: (4, 8)

Both conditions must be checked separately for each ordered pair. In option B, x=4 and y=8, so x+y=4+8=12>10, satisfying the first inequality. However, x>5 is false because 4 is not greater than 5. Thus (4,8) satisfies the required combination and option B is correct. Option A has sum 11>10 but x=6 does satisfy x>5, so it fails the second requirement. Option C has x=7>5, even though its sum is only 9, and therefore fails both requirements. Option D has sum 10, not greater than 10, and x=5 is not greater than 5. Careful attention to strict signs is essential.

Related tags

Two-Variable InequalityOrdered PairsChecking ConditionsIntroduction To InequalitiesLinear InequalitiesMathematicsClass 11 Mcq

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