Answer: $50 per month
Step-by-step explanation: Take 400 and divide it by the amount of months.
Answer:
Side of square bottom=6.46 m
Height of box=4.31 m
Step-by-step explanation:
Let s be the side bottom
Height of box=h
Volume of box=
Volume of box=


Cost of bottom=$40 per square m
Cost of sides =$30 per square m
Total cost=


Differentiate w.r.t s






Again,differentiate w.r.t s

Substitute s=6.46

Hence, the cost is minimum at s=6.46

Side of square bottom=6.46 m
Height of box=4.31 m
Answer: 3/5
Step-by-step explanation: 1/5*3=1/5+1/5+1/5=3/5
Answer:
420 Mile's.
Step-by-step explanation:
First you figure out the unit rate by dividing 360 by 6 which is 60. So that's 60 miles per hour. Now multiply 60 by 7 to find out how many miles she will drive in 7 hours. When you multiply you get 420.
Answer:
Medium
Step-by-step explanation:
The computation is shown below:
The cost for the small and medium bag is shown below:
As we know that
1kg = 1000g
So 3kg = 3000g
Now for small bags
= 0.95 ÷ 250 × 3000
= £11.40
For medium bags
= £1.80 ÷ 500 × 3000
= £10.80
So here the medium bag would represent the better value