Leslie and Marvin, both teachers, are adding books to their class libraries. Leslie's classroom started out with a collection of

Question

3 years ago

8

Leslie and Marvin, both teachers, are adding books to their class libraries. Leslie's classroom started out with a collection of

only 20 books, but she plans to purchase an additional 3 books per week. Marvin's library started out with 40 books, and he has enough money in his budget to purchase another 1 book per week. At some point, the two teachers' libraries will contain the same number of books. How many weeks will that take?

Mathematics

1 answer:

iren2701 [21] · Answer 1 · 2022-07-07T22:58:16+03:00

iren2701 [21]3 years ago

6 0

Answer:

10 weeks

Step-by-step explanation:

L = 20 + 3x

M = 40 + x

20 + 3x = 40 + x

3x = 20 + x

2x = 20

x = 10