100 because of the system
have a good day
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.
The function that would best represent the given condition above is,
f(x) = 24 / (3x - 2)
To determine the value of f(-2), substitute -2 to all the x's in the function such that,
f(-2) = 24 / ((3)(-2) - 2) = -3
The value of f(-2) is -3.
If Linda wants to know how much time students spend in the library, then she needs to how much people go. That means she needs to ask the first question, "How many hours per week do you read books in the library?".
Answer:
x = 20 and they are vertical angles
Step-by-step explanation:
2x = 40
x = 20
