Answer: 5
Step-by-step explanation:
5
Answer: 15%
Step-by-step explanation:
Given: Sales for last month = $2,400
Sales for this month = $2,760
Increase in sales = $2,760- $2,400
= $ 360
The percent of increase in his sales from last week to this week
Hence, the percent of increase in his sales from last week to this week = 15%
Answer:
2.13 ft x 2.13 ft x 2.66 ft
Step-by-step explanation:
If W is the width of the square base, and H is the height, then:
12 = W²H
The cost of the crate is:
C = 8W² + 2W² + 4(4WH)
C = 10W² + 16WH
Solve for H in the first equation:
H = 12 / W²
Substitute into the second equation:
C = 10W² + 16W (12 / W²)
C = 10W² + 192 / W
Take the derivative with respect to W.
dC/dW = 20W − 192 / W²
Set to 0 and solve:
0 = 20W − 192 / W²
20W = 192 / W²
20W³ = 192
5W³ = 48
W = ∛(48/5)
W ≈ 2.13 ft
Find H:
H = 12 / W²
H ≈ 2.66 ft
Answer:
92
Step-by-step explanation:
Given
2n + t² ← substitute n = - 4 and t = - 10 into the expression
= 2(- 4) + (- 10)² = - 8 + 100 = 92