exam Maths Puzzle Numerical Ability

help please

Solve by substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent.

3x � 4y = 0
2y = x + 1

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exam Other Question

Let K = (-2,1) and M = (3,4). Find coordinates for the two points that divide segment KM into three congruent segments. Two planes leave Chicago one traveling due east and the other due west. The first travels 100 miles per hour faster than the second. How long will it be until they are 2000 miles a