Percent means parts out of 100
x%=x/100
'of' means mulitply
60 is what percent of 10
60=x% times 10
60=x/100 times 10
60=10x/100
60=x/10
multiply both sides by 10
600=x
60 cartons is 600% of 10
40% of 24 is 9.6 so that means it's 9.6 hours or 9 hours and 36 minutes.
Let's have this equation equal y first. All we have to do is add y to both sides and subtract 4 from both sides.
5x-4=y
Now, to get a parallel line, the y intercept has to change. The y intercept (the -4 in the equation) can be an infinite amount of number but -4.
Let's choose 6. We would have 5x+6=y or you could put it in the way the other equation was, 5x-y=-6.
