Answer:
B. 7.5 hours
Step-by-step explanation:
Assuming that both hoses fill at the same rate, then by simple proportion,
To raise the pool by 1 foot of water:
1 hose ---> takes 3 hours
2 hoses ----> fills twice as fast ---> will take half the time ---> 3/2 = 1.5 hrs
Hence with 2 hoses, it will take 1.5 hours to fill 1 foot of water.
to fill 5 feet of water, we will need 1.5 hours x 5 feet = 7.5 hours
Answer:
yep
Step-by-step explanation:
Answer:
say x is the original price so
x - (20x/100) = 720
720 is the balance we got after deducting the original price,
therefore; 720 = (80x/100)
You can simply solve for x now.
answer:
x = 900
Answer:
Yes, zero is a rational number.
Zero can be represented in p/q form where q is not equal to zero as,
0/1
q=1 and p=0
The correct answer is 50.
How to get your answer...
1. Read the problem. The question asks for the average speed meaning that your operation is division.
2. Find out the values that you are dividing. In this case, the values you are dividing are 350 and 7.
3. Last but not least, divide 350 and 7. Since 7 x 5 is equal to 35, 350 is just 35 with a 0 at the end, so is your answer 5? No, you have to add a 0 to the 5. So, 7 x 50 is equal to 350.
