Answer:
25 minutes.
Step-by-step explanation:
Unit rate = 45/15 = 3 cents / minute.
So she pays 3 cents for 1 minute
and for 75 cents she can talk for 75 * 1/3 = 25 minutes.
Answer:
The three consecutive odd integers are: -11, -13 and -15.
Step-by-step explanation:
Let the smallest number be represented by x. then the three consecutive odd integers are: x, (x + 2) and (x = 4).
The sum of the smallest number and twice the larges number = x + 2(x + 4)
Fifteen more than four times the middle number = 4(x + 2) + 15
So that;
x + 2(x + 4) = 4(x + 2) + 15
x + 2x + 8 = 4x + 8 + 15
3x + 8 = 4x + 23
3x - 4x = 23 - 8
-1x = 15
⇒ x = -15
(x + 2) = (-15 + 2) = -13
(x + 4) = (-15 + 4) = -11
The three consecutive odd integers are: -11, -13 and -15.
The correct answer is
g(x) =f(x+2)
And
g(x)=x^2-2x-8