exam Maths Puzzle Numerical Ability

A hiker hikes up a mountain 1mph slower than she hikes down the mountain. If it takes her 1.5 hours to hike up the mountain, and only 1 hour to hike down it, how fast does she move each direction?

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exam Other Question

1. Find (a) the slope and (b) the y-intercept of the line determined by the given condition.

It's equation is y - 3x = 4.

It contains the points (2,4) and (3,5). linear equations:using the properties together.
addition and multplication