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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.

Respuesta :

Answer:

2

Step-by-step 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 

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
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