exam Maths Puzzle Numerical Ability

Solve the following system using the Gauss-Jordan Elimination method:

4x+2y=1
3x-y=2

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exam Other Question

If a tree is 16 ft. tall and the tree next to it casts a shadow of 20 ft. , what is the height of the second tree? a bus leaves a station at 1pm, traveling west at an average rate of 44 miles/a hour, one hour later a second bus leaves the same station traveling east at a rate of 48 miles per h