exam Maths Puzzle Numerical Ability

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log5 16-log5 2t=log5 2

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exam Other Question

I need help with solving x for the problem -3x^(1/2)+(4x)^(1/2)= -1
Can you please show me how you solve it? Thanks for your help! Walking and Jogging: A student walks and jogs to college each day. She averages 5km/h walking and 9km/h jogging. The distance from the home to college is 8km, and she makes the trip in 1 hour. How far does the student jog?