Nadia closes the nozzle of the funnel and fills it completely with a liquid. She then opens the nozzle. If the liquid drips at the rate of 10 cubic inches per minute, how long will it take for all the liquid to pass through the nozzle? (Use π = 3.14.)
2.51 minutes
7.53 minutes
4.18 minutes
3.14 minutes
Answer:
2.51 minutes
Step-by-step explanation:
Step 1: Find the total volume of the funnel
The volume of a cone can be calculated by below formula:
Where V is volume, pi is π, r is the radius of the base of the cone and h is the height of the cone
pi = 3.14
r = 2 inches
h = 6 inches
Step 2: Determine the time taken for funnel to empty
Assuming rate of emptying of funnel is constant
Where t is the time taken to empty the funnel and R is the rate at which the liquid drips
V = 25.12 cubic inches
R = 10 cubic inches/minute
buying them she had 12 dollars. How much did each book cost ?
Someone help
Answer: 345 - 9x = 12 is the equation. Each book cost $37.
Step-by-step explanation: 345 - 12 = 333. This reveals that she spent $333 on books. We divide this by nine to find how much each cost. 333 / 9 = 37. In the equation, x = 37.
Answer:
900 miles
Step-by-step explanation:
well if you have 12.5 and you divide it by 2.5 you get 5. I do this because you need to find out how many time 2.5 goes into 12.5 so you can then multiply 180 by that number. 180*5=900