So they bought x half gallons at $1.35 each ($2.70 per gallon). so their cost was:
C = 1.35x
Their revenue was the remainder of the milk (x - 13 that ruined) times the price:
R = 4.04(x - 13) = 4.04x - 52.52
The profit is Revenue - Cost
P = R - C = 4.04x - 52.52 - 1.35x = 2.69x - 52.52
Now we know they made 62.72 profit, so:
2.69x - 52.52 = 62.722.69x = 115.24x = 42.84 or about 43 half gallons
Answer:
D pi/4, 3pi/4
Step-by-step explanation:
Differentiate the function then equal it to zero and solve for the interval (see attached workings)
56.....................................................
Answer:
Step-by-step explanation:
Let's start with an equation like 2x+4=10. We have to isolate x to get an answer. We go for the number without the variable first.
2x+4=10
Subtract 4 from both sides.
2x+4-4=10-4
2x=6
Divide by 2.
2/2=6/2
x=3
There you go!
