
Number of days Adya took to complete the work = 20
Work done by Adya in 1 day = 
Number of days Ashley took to complete the work = 25
Work done by Ashley in 1 day = 
So,
Total work by Adya & Ashley in 1 day =

•°• Their total work in 10 days =

Now,
The work left to be completed =

From this we know that,
Amber completes
of the work in 3 days.
So,
Time taken by Amber to complete the whole work =

↦ If Amber alone would do the whole work, he would take
to complete it.
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Answer:
x=28
Step-by-step explanation:
cos60°=14/x
0.5=14/x
x=14/0.5
x=28
Answer:
1
Step-by-step explanation:
The probability that the aircraft is overloaded is 0.6141; since this is a greater than 50% chance, the pilot should either reduce the number of passengers on the plane or require them to reduce their baggage.
The z-score for this is given by
z = (X-μ)/σ = (169-180.2)/38 = -11.2/38 = -0.29.
Using a z-table (http://www.z-table.com) we see that the probability of weights being less than this (the area to the left of this score) is 0.3859; to find the probability that the weight is greater than this (to the right), we subtract from 1:
1-0.3859 = 0.6141.