Answer:
The high school graduating class changed by approximately 23%
Step-by-step explanation:
we have
The high school graduating class of 2010 was 260 people
Five years later the high school graduating class was 320 people.
we know that
260 people represent the 100%
so
The difference is (320-260)=60 people
using proportion
Find out what percentage represent 60 people
Let
x ----> the percentage that represent 60 people
therefore
The high school graduating class changed by approximately 23%
So, we need to add.
45 + 30 = 85.
$0.85 is your answer.
Glad I could help, and good luck!
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Answer:
t=-9
Step-by-step explanation:
2(2t-3)=6(t+2)
4t-6=6t+12
4t-6t=12+6
-2t=18
t=-9
Answer:
Option A 
Step-by-step explanation:
The volume of a cone is:
The volume of a cylinder is:
Both figures have the same height h and the same radius r.
The volume of the cylinder
We want to find the volume of the cone.
Then, we find r and h:
We simplify.
Then the product of 
.
We substitute this in the cone formula and get:
