# Math

How many ways can seven children sit on a bench? How many of these arrangements are the two oldest always together?

1. 👍 0
2. 👎 0
3. 👁 369
1. 7! = 5040

if the two oldest are one, then we only really have six
6! = 720
but one could be right and the other left or reverse so twice that many
*2 = 1440

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Language Arts

1) What can you infer from this sentence near the start of "The Story Teller"? Most of the aunt's remarks seemed to begin with "Don't," and nearly all of the children's remarks began with "Why" The children have a lot of questions

2. ### Probability

Twelve children are divided up into three groups, of five, four, and three children, respectively. In how many ways can this be done if the order within each group is not important? Thank you so much!

3. ### Math

How many ways can 3 students be chosen from a class of 20 to represent their class at a banquet? (1 point) 6,840 3,420 1,140 2,280 15. You and 3 friends go to a concert. In how many different ways can you sit in the assigned

4. ### MATH

A family has 4 children. A tree diagram or systematic list can be used to show how many ways the children could have been born, from first born to last born. Determine how many ways the family could have had one boy and 3 girls.

1. ### Math

A small aeroplane has 14 seats for passengers. The seats are arranged in 4 rows of 3 seats and a back row of 2 seats . 12 passengers board the aeroplane. (i) How many possible seating arrangements are there for the 12 passengers?

2. ### Pre Calculus 12

permuations an orchestra has 2 violinsts, 2 cellisst, and 4 harpists. Assume that the players of each instrument have to sit together, but they can sit in their own group. In how many ways can the conductor seat the members of the

3. ### math

To win the World Series, a baseball team must win 4 games out of a maximum of 7 games. To solve the problem, list the possible arrangements of losses and wins. How many ways are there of winning the World Series in exactly 6 games

4. ### mathematics

Dan, Ben, and Mark are friends. Together, along with two of their classmates, they bought movie tickets that were all in one row. How many different ways can everybody sit if Dan, Ben, and Mark want to sit together?

1. ### Math

If a family has 4 children, in how many ways could the parents have 2 boys and 2 girls as children?

2. ### English

What is the principal part of the italicized verb in this sentence from “The StoryTeller”? The aunt suppressed a gasp of admiration. present present participle past past participle 2. Which sentence uses the same principal

3. ### Math

Jerry started doing sit ups every day. The first day he did 15 sit ups. Every day after that he did 2 more sit ups than he had done the previous day. Today Jerry did to 33 sit ups. Write an equation that could be solved to find

4. ### Physics

A playground merry-go-round made in the shape of a solid disk, has a diameter of 2.63 m and a mass of 353.9 kg. Two children, each of mass 30.5 kg, sit on opposite sides at the edge of the platform. Approximate the children as