Answer:
6 times
Step-by-step explanation:
28claps =12seconds
? = 0.5minutes
60seconds=1minute
? =0.5 minutes
(cross multiply)
60*0.5/1 = ?
?=30seconds
28claps = 12secs
? =30secs
28*30/12 =?
?=70claps
140a/35s=4a/s
.......................
7:30 am to 10:00 am is 2 hours and 30 minutes.
7:30 to 8:30 is 1 hour
8:30 to 9:30 is 1 hour
9:30 to 10:00 is a half hour, which is 30 minutes.
Since it took 2 hours and 45 minutes to arrive, they arrived at 10:15 which was not in time for the opening.
Answer:
Length of pipe to Chesterville is 8.376 miles and
Length of pipe to Denton is 5.46 miles
Step-by-step explanation:
Here we have
The distance of Chesterville from the river is 3 miles, while the distance of Denton from the river is 5 miles
The bank of the river is 10 miles long
Therefore, we have
If x is the distance from the point directly opposite to Chesterville to the location of the water works, the equation is;
Cost to Chesterville =
Cost to Denton =
Total cost is then;
We differentiate the above equation and equate it to zero to get the minimum cost as
= 0
Solving the quartic equation we get
x = 7.82 miles
Therefore the length of is given as
Length of pipe to Chesterville
Length of pipe to Denton = .