Answer:
x = -7 and x = 4.
Step-by-step explanation:
f(x) = x^2 + 3x - 28
= (x + 7)(x - 4).
The reciprocal of f(x) can be written as
1 / (x + 7)(x - 4).
When the denominator is zero we have vertical asymptotes
so they are x = -7 and x = 4.
Answer:
24 quarters
Step-by-step explanation:
step 1
Find out the total cost
Multiply the total hours by the unit rate of $2.00 per hour
so
step 2
To find out how many quarters Ben needs, divide the total cost by $0.25 (value of one quarter coin)
so
25+30x=65+20x
-20x -25
------ ------
10x=40
10 10
x=4
I crossed multiplied but in a weird way because of how this is. Anyways, I hoped I helped you. :D
Answer: $50 + $2.49x = $67.43
Step-by-step explanation:
Let the case of water bought be represented by x.
We are informed that Sam's Club has a special that charges $2.49 per case of water and that Vinny wants to pay that price, but needs to purchase a membership first, which costs $50 and that Vinny eventually spent $67.43.
The equation that represents the number of cases of water that Vinny bought at Sam's club will be:
$50 + $2.49x = $67.43
