Answer: 18.66 miles per hour.
Step-by-step explanation:
The velocity of the Kayak can be written as the velocity of the kayak in still water plus the rate of the current.
If K is the velocity of the kajak, and C the velocity of the current, we have that:
When the kajak moves along with the current, for a given time T.
(K + C)*T = 10mi
when the kajak move against the current:
(K - C)*T = 4mi
now we can replace C by 8mph, and take the quotient of both equations:
((K + 8mph)*T)/(K - 8mph)*T)) = 10mi/4mi
(K + 8)/(K-8) = 10/4
K + 8 = (K- 8)*10/4
K + 8 = K*10/4 - 20
K*10/4 - K = K*6/4 = 20 + 8 = 28
K = 28*4/6 = 18.66
So the rate of the kajak is 18.66 miles per hour.
Answer:
The standard deviation on the critical path = 0.834
Step-by-step explanation:
Variance of activity A () = 0.33
Variance of activity B () = 0.67
Variance of activity C () = 0.33
Variance of activity D () = 0.17
Thus the standard deviation on the critical path () = + + +
= + + +
= 0.6956
= 0.834
The standard deviation on the critical path = 0.834
Answer:
13%
Step-by-step explanation:
Percentage of tulips=100%-75%
=25%
Percentage of pink tulips=50%×25%
=12.5%
Hence, the option with 13% is closest to 12.5% when it is rounded off to the nearest ten.
Thus, the answer is 13%.
hope it helps!!!
Answer:
1 penny 3 nickels 2 dimes = 36 cents
quarter
Step-by-step explanation:
Answer:
9x10^16
Step-by-step explanation:
Since your exponent 16 is same all you have to do is, Add 2+7 and write the same 10^16
So your answer will be 9x10^16
Hope this helps!