Answer:
George's mistake would be:
Instead of 2x + 40, she has made - x + 20.
Step-by-step explanation:
Slope - Intercept Form = y = mx + b
y + 20 = 2(x +20)
y + 20 = 2x + 40
- 20 - 20
----------------------
y = 2x + 20
(Should have been the answer)
BUT,
George's Solving:
y + 20 = 2(x + 20)
y + 20 = -x + 20
George's Mistake would be her miscalculation during her 2nd step. Where instead of distributing 2 to (x + 20), she has changed it to -x + 20, when in reality, it should have been 2x + 40.
Answer:
a.
b.
c.
d. -6t - 5
Step-by-step explanation:
When a number has the same variable as another, you can add or subtract them
So for the first one, you can do
(But don't forget the !)
So it is:
Continue this process for the rest of them
5 multiplied by .3 is 1.5
1.5 + 18.5 = 20.
y = 9.25
Given , revenue function :
Cost function
Profit = Revenue - Cost
Hence, P = R(x) - C(x)
Total revenue for x = 12000 is
Total cost for x = 12000,
Profit = 60000-28500 = 31500
Answer = 31500