Answer:
The answer is C or x=-4.
Step-by-step explanation:
I hope this helps!
14 books in 3 months is 35%
all of books is 100%
14- 35%
x- 100%
we calculate from proportions, crosswise:
![x=\frac{14*100}{35}=\frac{1400}{35}=40](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B14%2A100%7D%7B35%7D%3D%5Cfrac%7B1400%7D%7B35%7D%3D40)
Answer: Benito sign up to read 40 books.
Greetings,
n00nst00p :)
Answer:69.15
Step-by-step explanation: the deviation is 6 which and 1/6 of people got the same grade as him - 100 = 69.15
Answer: I believe its 104.55
Step-by-step explanation:
Cost of Lightbulb = x
cost of switch is x-8
9x + 4(x-8) = 520.50
Use distributive property:
9x + 4x -32 = 520.50
Simplify:
13x -32 = 520.50
Add 32 to both sides:
13x = 552.50
Divide both sides by 13
X = 42.50
A lightbulb costs $42.50
A switch costs 42.50-8 = $34.50