Answer:
since base is pi r^2
it's given that h=4r
now find derivative
× dr/dt
r=8 , dv/dt = 3
dv/dt = 4pi (8)^2 ×3 = 768pi
The steps below show the incomplete solution to find the value of x for the equation 8x − 3x − 1 = −2 + 16:
1 answer:
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Answer:
52.
Step-by-step explanation:
Let x be the number of total pies before the bake sale started.
We have been given that at the beginning of the bake sale, Mary set aside 2 pies for herself.
So the pie left for sale will be x-2.
We are also told that Karen bought half of the remaining pies for her birthday party, so number of pies bought by Karen will be: .
Further, we are told that 10 more pies were sold during the sale, so number of total pies sold and used by Mary will be:
As there were 15 pies remaining, so we can represent total number of pies in an equation as:
Let us have a common denominator.
Let us multiply both sides of our equation by 2.
Therefore, there were 52 pies before the bake sale started.