Answer:
Step-by-step explanation:
The first 9 stands for 90,000 and the second for 9 000 so the first 9 is worth
90,000 / 9,000 equals 10 times the second one.
The correct answer is the correct answer... there is no question to be answered so there is no answer
Answer:
a) y = (x+2)/3
b) 5
Step-by-step explanation:
f^-1(x) means "f inverse of x". To find the inverse, we simply:
a ) f(x) = 3x -2
y = 3x - 2 --> because f(x) is the same thing as y
x = 3y - 2 --> to find the inverse, we simply just switch x and y
x + 2 = 3y
y = (x+2)/3
b) f^-1(13)
f^-1(13) = [((13) + 2)/3]
f^-1(13) = (15)/3
f^-1(13) = 5
To find the original price, add the discount back onto the sales price.
17.55+5.85= 23.4
So your answer would be $23.40. Hope this helps!
Answer:
13.82 or 14 people
Step-by-step explanation:
Step 1: Set equation equal to 7500
7500 = -25x² + 1250x - 5000
Step 2: Solve
0 = -25x² + 1250x - 12500
0 = -25(x² - 50x + 500)
0 = x² - 50x + 500
When you use the quadratic formula, you should get 13.82, rounded to 14 people as your answer.
Alternatively, we can graph the expression and see where $7500 for <em>x</em> people is.
