Answer:
$22.5.
Step-by-step explanation:
The total revenue that is gained from the sales of the cakes is determined by multiplying the number of cakes by the price. If we let x be the number of $1 that should be deducted from the price and y be the total revenue,
y = (25 - x)(100 + 5x)
Simplifying,
y = 2500 + 25x - 5x²
We get the value of x that will give us the maximum revenue by differentiating the equation and equating the differential to zero.
dy/dx = 0 = 25 - 10x
Answer: 158x+5
Step-by-step explanation:
To find the price of each bead you divide the price paid ($48) by the amount of beads (200).
48 ÷ 200 = 0.24
Each bead costs 24 cents.
Therefore, if she buys 25 more beads, she will pay $6.
0.24 x 25 = 6
Answer:
=5x
Step-by-step explanation: