Answer:
7 Hours 12 Minutes
Step-by-step explanation:
So they one of the printer increases at a rate of 1/12 and the other increases at a rate of 1/18. Since you don't know the time it actually takes, you will replace both numerators with and x. (x/12 and x/18). You want to set these up so that they are adding. (x/12 + x/18=1). Since you're adding, you want to change it to the same denominator. The lowest is 36 so you multiply x/12 by 3/3 (so you don't unbalance the equation) and x/18 by 2/2. You'll end up with 3x/36 + 2x/36= 1 which will simplify to 5x/36=1. Multiply each side by 36 to leave the variable by itself. It becomes 5x=36 and when you divide it by 5 you get 7.2. So it's seven and .2 hours, which is equivalent to7 and 1/5 of an hour or 7 hours and 12 minutes.
Answer:
Step-by-step explanation:
Hope this helps if im wrong im dum:-:
Answer:
4 Books
Step-by-step explanation:
3+1 = 4
16 - 4 = 12
3x4 = 12
Answer:

Step-by-step explanation:
Given,
Length ( L ) = 6x - 5
Perimeter of a square ( P ) = ?
<u>Finding </u><u>the </u><u>perimeter </u><u>of </u><u>a </u><u>square </u><u>having </u><u>length </u><u>of </u><u>6</u><u>x</u><u>-</u><u> </u><u>5</u>
( where l is the side of the square )
plug the value of length
⇒
Distribute 4 through the parentheses
⇒
⇒
Hope I helped!
Best regards!!