Answer:
Time taken by the un powered raft to cover this distance is T = 192.12 hr
Step-by-step explanation:
Let speed of boat = u
Speed of current = v
Let distance between A & B = 100 km
Time taken in downstream = 32 hours
u + v = 3.125 ------ (1)
Time taken in upstream = 48 hours
u - v = 2.084 ------- (2)
By solving equation (1) & (2)
u = 2.6045
v = 0.5205
Now the time taken by the un powered raft to cover this distance
Because un powered raft travel with the speed of the current.
T = 192.12 hr
Therefore the time taken by the un powered raft to cover this distance is
T = 192.12 hr
Our first expression is equal to zero:
So we simply find the expression that is equal to zero.
The final answer is a.
Answer:
(A)
Step-by-step explanation:
Let y be the length of the rectangular backyard and then according to the question, y should be atleast 150 ft, then the possible inequality is:
and the distance around should be no more than 450ft, then the possible inequality is:
Then, the shaded region (green) is the possible dimensions of the backyard.
Answer: $389.35
Step-by-step explanation: Multiply $599 by .65, to get the 35% off price.
There is also another way you can do this kind of problem. You multiply $599 by .35, then subtract that number from 599. I prefer the first method because it is faster.
Answer:
87.5 miles
Step-by-step explanation:
If 2 inches is 35 miles then 4 inches will be 70 inches
to get the last inch all you have to do is divide the 35 in have to get 17.5
70 + 17.5 = 87.5