Answer:
235.62
Step-by-step explanation:
V=πr^2h=π·2.5^2·12≈235.61945
The ratio given is 3:7 where nonfiction:fiction.
To find the new ratio, divide 3 from 240.
240 / 3 = 80
Now multiply 80 by 7.
80 x 7 = 560
The new ratio is 240:560
If there are 240 nonfiction books then there are 560 fiction books.
To find the total, add these together.
240 + 560 = 800
There are 800 total books
Answer:
75 quarters 25 nickels
Step-by-step explanation:
q=quarters n=nickels
q+n=100 n=100-q
0.25q +0.05(100-q)=20
From now I will multiply by 100 to avoid decimals
25q + 5(100-q)=2000
20q=1500
q=75 n=25
75*0.25= 18.75
25*0.05=1.25
18.75+1.25=20
Answer:
YES IT IS A RATIONAL NUMBER
Step-by-step explanation:
The simplified form of 23 + 2.16 = 25.16
We know that:
Rational number: rational number is the number that can be written as a/b (a and b would be intergers and b is not equal to 0). Rational number would be most of numbers we use in out life, except Square root and Pi number.
In this case, 25.16 can be written as:
2516/100
SO YES IT IS A RATIONAL NUMBER
Hope this helped :3