110k views
13 votes
My mom's friend bought cookbooks and travel books at a book sale. She spent $107 and bought 31 books. The cookbooks cost $2 apiece and the travel books cost $5 apiece. How many of each type of book did the friend buy?

MUST BE CORRECT OR ANSWER DELETED AND YOU WILL BE REPORTED.

2 Answers

12 votes

cookbooks be x

travel books be y

  • x+y=31--(1)
  • 2x+5y=107--(2)

(1)×2

  • 2x+2y=62--(3)

Subtract (3) from (1)

  • 3y=45
  • y=15

Now

  • x=31-15
  • x=16
User TheRookierLearner
by
5.6k points
9 votes

Answer:

2

Explanation:

$52 7books $6 CB which means she brought 2 which is $12$8 TB and then 7-2 because he already brought 2 CB so that means that he brought 5TB which is 40 Then add 40 +12 = $52 for 7 books

User Nato
by
5.9k points