# Math

Cesar's sixth- grade class sorted books in the library. The class sorted 45 books in 90 minutes. Write an equivalent ratio to find how long it would take to sort 120 books.

1. 👍 4
2. 👎 0
3. 👁 1,299
1. 45/ 90 = 120/x

1/2 = 120/x

x = 240

1. 👍 3
2. 👎 2
2. 240

1. 👍 3
2. 👎 1
3. 90 divided by 45 = 2
The class sorts 2 books per minute.
120 books
120 x 2 is 240

1. 👍 9
2. 👎 0
4. I don't understand can someone explain is the answer 240 or 2??

1. 👍 2
2. 👎 1
5. Can someone explain

1. 👍 0
2. 👎 1

1. 👍 1
2. 👎 1
7. I got 240 is that right

1. 👍 1
2. 👎 0
8. 4 hours cause it cant be 240 hours

1. 👍 0
2. 👎 0
9. Of you divide 45 and 90 u will get 2 so it tales 2 minutes per book soo 120 x 2=240
240=4 hours

1. 👍 0
2. 👎 0
10. well it took him 45:90 (45 books 90 mins)

so all you have to is find out how many books per minute

90/45=2

so books per minute

now do 120 x 2= 240

ratio is now 240:120

CHECK!

divide 240 by 120 and you get 2

1. 👍 1
2. 👎 0

## Similar Questions

1. ### Algebra

Check My answers Please- 1. 3(y + 1) for y = 2 a.6 b.9*** c.7 d.8 2. d + g/h for d = 45, g = 18, and h = 9 a.6*** b.7 c.3 d.4 3.The cost in dollars of a class party is 59 + 13n, where n is the number of people attending. What is

2. ### statistics

Go to a local library; collect a sample of books consisting of the ages of book (based on copyright dates). Plan and describe the sampling procedure, then use the results to construct a confidence interval estimate of the mean age

3. ### math

The sixth-grade class was asked the question, “What job would you like the best?” The results are shown in the table. What percent of the sixth-grade class, to the nearest whole percent, said that they would like to be a movie

4. ### math

the library has a total collection of 2630 books. the number of non-fiction books is 240 fewer than the number of fiction books but 190 more than the number of picture books. how many books of each type are there in the library?

1. ### math

please help In a class library, 3 out of 4 books are non-fiction. The rest are fiction. How many non-fiction books could there be? How many fiction books? How many different answers can you find for part a? Which answers are

2. ### math

BOOKS A library contains 2000 books. There are 3 times as many non-fiction books as fiction books. Write and solve a system of equations to determine the number of non-fiction and fiction books.

3. ### math-distinguishability

A library has six identical copies of a certain book. At any given time, some of these copies are at the library and some are checked out. How many different ways are there for some of the books to be in the library and the rest

4. ### Arithmetic

A box in a college bookstore contains books, and each book in the box is a history book, an English book or a science book. If one-third of these books are history books and one-sixth are English books, what fraction of the books

1. ### MATH

20% books in the library is fiction books and the rest were non fiction books.when 30% of the fiction book and 15% of non fiction books were borrowed,there were 1132 books left.How many books was borrowed?

2. ### math

kyle had 36 books in hislocker. some were library books, some were textbooks, and the rest were telophone books. the number of library books and textbooks combined equal twice the number of textbooks. the number of textbooks and

3. ### Maths

20% of the books in a library were fiction books while the rest were non-fiction books. When 30% of the fiction books and 15% of the non-fiction books were borrowed, there were 1312 books left in the library. How many books were

4. ### MATH HELP ME PLZZ

The school library has 2,469 books. Two-thirds of the books are paperbacks. How many books are paperbacks? HELP I don't understand any of this!!