maximum

256 Questions
115 Answers

0

52

1

+816

need help

I have $5$ different mathematics textbooks and $4$ different psychology textbooks. In how many ways can I place the $9$ textbooks on a bookshelf, in a row, if all the psychology textbooks must be together, and all the mathematics textbooks must be toge lee mas ..

maximum 13 dic 2023

0

36

0

+816

help counting

A speech class has five freshmen and four sophomores. (Everyone is distinguishable.) In how many ways can they stand in line, so that at least four of the freshmen are standing next to each other?

maximum 13 dic 2023

0

37

1

+816

venn diagram

Dogs in the GoodDog Obedience School win a blue ribbon for learning how to sit, a green ribbon for learning how to roll over, and a white ribbon for learning how to stay. There are $100$ dogs in the school.
* $41$ have blue ribbons, $23$ have lee mas ..

maximum 13 dic 2023

0

53

1

+816

help me

In the Olympic women's skating competition, the gold medal goes to first place, silver to second, and bronze to third. If there are $3$ skaters, including $3$ Americans, in how many ways can the medals be awarded to three of the $3$ skaters if exactly lee mas ..

maximum 13 dic 2023

0

53

0

+816

Counting

In the Olympic women's skating competition, the gold medal goes to first place, silver to second, and bronze to third. If there are $3$ skaters, including $3$ Americans, in how many ways can the medals be awarded to three of the $3$ skaters?
<lee mas ..

maximum 13 dic 2023

0

48

0

+816

help counting

North High School has a math club and a science club. There are a students in the math club and b students who are members of both clubs. The total number of students is c. Find an expression for the total number of students lee mas ..

maximum 13 dic 2023

0

41

1

+816

Counting

North High School has a math club and a science club. There are $a$ students in the math club and $b$ students who are members of both clubs. The total number of students is $c$. Find an expression for the total number of students lee mas ..

maximum 13 dic 2023

0

23

1

+816

squares

Each square below is to be colored either red, yellow, or blue, so that no two consecutive squares have the same color. How many ways are there to color the squares? lee mas ..

maximum 13 dic 2023

0

39

0

+816

need help

South High School offers only Chinese and Spanish. There are $5$ more students in Chinese than in Spanish, and every student takes at least one language. If there are a total of $12$ students in South High School, and $15$ students take only lee mas ..

maximum 13 dic 2023

0

43

0

+816

help me

At my office, $4$ people own cats, $2$ people own dogs, and $5$ people own both cats and dogs. How many people own a cat or a dog?
(Remember that in mathematics, the word "or" is used in the inclusive sense. So if you own lee mas ..

maximum 13 dic 2023