Answer:
1.67 days
Step-by-step explanation:
Sara can finish 1/4 work a day
Kim can finish 1/5.5 work a day
John can finish 1/6 work a day
if they work together one day can do: 1/4 + 1/5.5 + 1/6 = 79/132
79/132 * x days = 1
x = 132/79 = 1.67
Answer: 27.42 ft
Step-by-step explanation:
To find the perimeter first we must find the circumference of the circles.
You can easily find the diameter by subtracting and you get 6.
Using the circle circumference formula c=2piR you get 9.42.
9.42 is our circumference of one circle.
You don't need to divide this by 2 because you already have 2 halves of a circle.
Next add all the sides which is 18.
Add this to the circumference we calculated earlier which gives you 27.42 ft.
Answer:
-1.2
Step-by-step explanation:
