Question

Bridget's classroom started out with a collection of only 6 books, but she plans to purchase an additional 3 books per week. Cole's library started out with 38 books, and he will purchase another 1 book per week. At what week and amount of books will the two libraries be the same?

Answer 1

bridget in week 13 will have 117 books and Cole in week 3 will also have 117 books

Explanation:

find total books in a week

Bridget =6+3=9

cole= 38+1=39

find lcm

9={3×3}

39={3×13}

lcm={3×3×13}

=117

for Bridget

117÷9 =13 weeks

for cole

117÷39

3 weeks

Answer 2

6 and 19 which is bridgets and 114 and 3 which you know is Coles