Answer:
1/3
Step-by-step explanation:
![\left[\begin{array}{cccc}Bought\ Lunch&Boys&Girls&Total\\0\ up\ to\ 10&10&5&15\\10\ up\ to\ 20&20&25&45\\Total&30&30&60\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcccc%7DBought%5C%20Lunch%26Boys%26Girls%26Total%5C%5C0%5C%20up%5C%20to%5C%2010%2610%265%2615%5C%5C10%5C%20up%5C%20to%5C%2020%2620%2625%2645%5C%5CTotal%2630%2630%2660%5Cend%7Barray%7D%5Cright%5D)
The number of boys who bought 10 to 20 lunches is 20.
The total number of students is 60.
So the probability is 20/60 = 1/3.
Answer:
1847.26 yards cubed
Step-by-step explanation:
V=πr^2h
π*49*12= 1847.26
Have a good day :)
Y=-4x to the second power +3x+210
You undistribute like
ab+ac=a(b+c) so
2pir^2+2pirh=(2pir)(r)+(2pir)(h)=2pir(r+h)
It is 22 cuz 5 * 2 is 10 and 10 * 2 IS 20 + 2=22