Both side multiply by one number.
We know that
DF is the diameter of the circle
so
radius r=DF/2----->20/2-----> r=10 in
area of the circle=pi*r²------> pi*10²-----> 100*pi in²-----> 314 in²
the answer is
100*pi in² or 314 in²
In order to solve this problem,
Add the Number in the Ratio together
3+2=5
In the problem it tells you that the combined money is 180
Let x be the "1" in the ratio
Divide to find x
5x=180
5x÷5= 180÷5
x=36
So now you know how much "1" is
John= 3×36= 108
Peter= 2×36= 72
108-72
The answer is 36
The answer to the question stated above is:
What are given?
250- estimated people
315- no. of people who actually attended.
What is asked?
percent error
Solve:
Subtract 250 from 315
So, the error is 65. To get the percentage error, divide 65 by 315. You will then get 0.20634...Multiply the result with 100. The percentage error then is 20.63%.