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.
1. 9
2. 16
3. 225
4. 196
5. 25
6. 256
"Using these two terms are different in really one way, saying buy one get one half off is saying pay for one get another half that price, saying 50% discount means that you pay half of the original price but you still pay the taxes with it and with the 1st choice you wouldn't have to pay that additional taxes."
Answer:
im pretty sure it's 165.79
There is no question here to answer.
