book
Maths Puzzle
Numerical Ability
from 80,000 jars produced, a manufacturer samples 1,200 and finds 7 of those defective. estimate the total number of defective jars.
Read Solution (Total 0)
book Other Question
1/x-4=1/2x+7
I HOPE YOU CAN HELP
USE THE SUBSTITUTION METHOD TO SOLVE THE LINEAR SYSTEM
1. X + 2 = -5
4x -3y = 2
2. 3x - 2y =4
x + 3y = 5
3. 3x + y = -2
x + 3y = 2