Multiply both sides of equation (1) by 4, and add the resulting equation to equation

2x - y +z = 4
-X+ 4y + 5z = 1

Factor k2 - 17k + 16. a.(k - 2)(k - 8) b.(k - 1)(k + 16) c.(k - 1)(k - 16)

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

5x−4≥12 or 12x+5≤−4 can you with this problem