The formula is
time = (Worker 1 * Worker 2) / (Worker 1 + Worker 2)
time = (18 * 20) / (18 + 20)
time = 360 / 38
time =
<span>
<span>
<span>
9.4736842105
</span>
</span>
</span>
minutes
So, the answer is "a. 9.5 minutes".
Source
http://www.1728.org/work.htm
The surface area of hemisphere is given by:
Where r is radius of hemisphere.
We are given diameter = 250 ft.
We know that radius = half of diameter.
Radius of dome = 1/2 (250) = 125 ft.
Now let us plug the value of radius in the formula,
Surface Area of dome = 98125 square foot.
Assuming that you mean the FIFTH power then
7^5=7*7*7*7*7=16,807
6(c-20)≤360 divide both sides by 6
c-20≤60 add 20 to both sides...
c≤80
So the original cost of chairs must be $80.00 or less.
342.5 because you add all of them together then divide
