exam Maths Puzzle Numerical Ability

Solve the system of equations by the Gaussian elimination method:

2x+y -3z=1

3x-y +4z =6

x +2y -z= 9

Read Solution (Total 0)

exam Other Question

Find the value of y so that the line passing through the two points has the given slope :
(6,4),(-4,y), m=-4 If you mix a 50% concentrate acic solution and a 20% concentrate acid solution and you end up with 40 gallons of a 42.5% concentrate acid solution, how much of the 50% and 20% solution did you use.