exam Maths Puzzle Numerical Ability

A student walks and jogs to college each day. She averages 5km/h walking and 9km/h jogging. The distance from home to college is 8kn, and she makes the trip in 1 hr. How far does the student jog?

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exam Other Question

Solve by using addition or substitution.If a unique solution does not exist, state whether it is inconsistant or dependant.
10x+2y=7
y=-5x+3

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