L = 2 W
B = L x W = 2 W²
Side Area = 2 W H + 2 L H = 2 H ( W + L ) = 6 H W
V = 2 W² H = 10
H = 5 / W²
Cost = 15 * 2 W² + 9 * 5/W
= 30 W² + 270/ W
C ` = 60 W - 270 / W²
= ( 60 W² - 270 ) / W² = 0
60 W² = 270
W ² = 270 : 60
W² = 4.5
W = √ 4.5 = 2.12
Cost (min) = 15 * 2 * 4.5 + 30 / 2.12 = 135 + 14.15 = $149.15
Answer: The cost of materials for the cheapest such container is $149.15.
1: Its B
4: Its D
Sorry I don't know what how to explain it.
ANSWER
EXPLANATION
Let the first number be
Then the second number will be
and the third number is
The sum of these numbers is 26.
This implies that;
Group similar terms;
Simplify;
Divide both sides by 5
This gives us;
The numbers are:
45 miles per hour divided by 60 minutes is .75 miles a minute.10 miles divided by .75 is 13.33 minutes rounded to 13
50 miles per hour divided by 60 minutes is .83 miles per minute.10 miles divided by .83 is 12.04 minutes rounded to 12
13 - 12 = 1 more minutes
Answer:
I think it is 7hours and 15 min
Step-by-step explanation:
