exam
Maths Puzzle
Numerical Ability
x - y + z = 17
x + y -z = -11
x - y -z = 9
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exam Other Question
can you help me solve for x and y
[3 4y] = [ 3 2]
5 8 2x-1 8
i tried and i got this,
3+4y=3
-4 -4
3y=-1
- -
3 3
y=-1/3
how do i work this out??
A bus leaves a station at 1 P.M., traveling west at an average
rate of 44 mi/h. One hour later a second bus leaves the same station, traveling
east at a rate of 48 mi/h. At what time will the two buses be 274 mi apart?