Find 3/4 of 24000
3/4 * 24000 = 18000
Divide by 40.
18000 / 40 = 450
So it will take 450 minutes for it to be 3/4 full.
Answer:
Step-by-step explanation:
we know that
The area of the shaded region is equal to the area of the sector minus the area of the triangle
step 1
Find the area of the circle
the area of the circle is equal to
we have
substitute
step 2
Find the area of the sector
we know that
The area of the circle subtends a central angle of 360 degrees
so
by proportion find out the area of a sector by a central angle of 72 degrees
step 3
Find the area of triangle
The area of the triangle is equal to
step 4
Find the area of the shaded region
Subtract the area of the triangle from the area of the sector
(t^3-t)/a=b because a t the simple of questions