book Maths Puzzle Numerical Ability

use cramers rule to solve

5x-4y+z=17
x+y+z=4
-10x+8y-2z=11

Read Solution (Total 0)

book Other Question

what is a expression I have three questions:
#1)How do you turn percentages into fractions and vice-versa?
#2)How do you change 9 1/4% into a reduced fraction? Is it just 9 1/4?
#3)How do you cha