Homework Help: Math

Posted by Grace on Sunday, August 5, 2012 at 8:04pm.

1) Mr.Anderson has 3 passenger seats in his car.He offered to drive some of the 5 members of his daughter's club to the movies. How many different groups of 3 passengers could he drive?

2) A jar has green and red marbles.If the ratio of green to red is 3:2,what is the probability that one marble selected at random will be green?

3)The average of the old integers between 10 and 20 is how much more than the average of the even intergers between 0 and 20?

4) In the River City string ensemble of 15 people, 8 people play the violin and 5 people play the cello. If 2 of these people play both instruments,how many members of the string ensemble play neither of these instruments?

Math - Partial answer - Ms. Sue, Sunday, August 5, 2012 at 8:10pm
3.
[(2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18)/9] - [(11 + 13 + 15 + 17 + 19)/5] = ?
Math - MathMate, Sunday, August 5, 2012 at 8:34pm
1) 5 choose 3
5C3=5!/(3!2!)=10
2)
3 out of 5 is green, so
P(G)=3/5
3) check if "between 0 and 20" includes or excludes the two ends.
4)
Number of people who play at least one of violin or cello
=8+5-2=11
So four of the members do not play the violin nor the cello.
Math - Ms.Sue, Wednesday, March 6, 2013 at 5:25pm
Hello

Answer this Question

Related Questions

Algebra - While traveling in a car, the centrifugal force a passenger ...
Math - Three men named Greene, Grey, and Tann along with two women name Browne ...
Maths - A car showroom had 10y cars, 20y motorcycles and 18 vans. In a ...
grammar - correct the grammar of the following text: Jason Turner thought he did...
MATH HELP PLEASE!! - On a flight with 138 passengers, each passenger had the ...
College math - On a flight with 138 passengers, each passenger had the choice of...
Math - Edgar Anderson earns $200 a week plus a 15% commission on all sales over...
math - mr.mcmathy needs 129 seat for his 5th grade program .if the seats are ...
Data managment math - 1:There are 7 seats in the family new van. if 4 of the 7 ...
Physics - A 60kg front seat passenger in a car moving initially with a speed of ...

For Further Reading

First Name:
School Subject:
Answer: