exam Maths Puzzle Numerical Ability

find an equation of variation where y varies directly as x nd y = 100 when x=4

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exam Other Question

4,000 ML is to ______ L The variable r and s represent the length of the legs of a right triangle,and t represents the length of the hypottenuse. find the unknowm vaule. then tell whether the lengths form a pythagorean triple.

1) r = 8, t = 12

2)r = 4, s = 6