exam Maths Puzzle Numerical Ability

QUESTION: SOLVE THE SYSTEM BY GRAPHING

2X+Y=4
X+Y=3

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exam Other Question

Sam is on a train traveling south at 34 mph. He spots a second train traveling east at 23mph and records it takes 18 seconds for the 2nd train to pass. How long in feet is the second train? I have given this problem so much thought that I can't think of anything else. I would greatly appreciate all the help I can get!

The marketing department of a company estimates