exam
Maths Puzzle
Numerical Ability
the quadrilateral with vertices P(6,3), Q(2,-2), R(1,7) and S(x,y) is a parallelogram. Find (x,y) algebraically.
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exam Other Question
Solve the system of equations using a 3x3 matrix.
5x + 5y + z=24
5x - 5y -z=26
3x + y + 2z=22
1.)Solve the system.
4x + 3y = 11
3x - 2y= 4
x=? y=?
2.)Jennifer has collected $4.50 in nickels and dimes. If she has 55 coins, how many of each kind of coin does she have?