exam Maths Puzzle Numerical Ability

a lab is testing two high-speed trains. One train travels 40 km/h faster than the other train. While one travels 70km, the other travels 60 km. Find their speeds.

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exam Other Question

Suppose that triangle ABC has a right angle at B, that BF is the altitude drawn from B to AC, and that BN is the median drawn from B to AC. Find angles ANB and NBF, given that angle C is 42 degrees.
Find an equation of the line through the given points. Write the equation in standard form.

Through (-2,-6) and (8,-3)

The equation is? ___
(Type your answer in standar