Since a week is 7 days you have to multuply 7*3/4
Turn 7 into a fraction
Solve for x
x-4=11
x=11+4
x=15
-10x+8 and 5x-4 is a possible combination. Those are both linear equations when added together will give you -5x+4
It is 55:11. What number can both those numbers divide by? 11.
55/11=5
11/11=1
So the answer is 5:1.