Question

mrs. henry bought books during the summer. she bought 5 books for $12.00, 6 books for $10.00, and 4 books for $8.00.
what is the average (mean) amount she spent for each book?
a. $4.00 per book
b. $3.25 per book
c. $3.00 per book
d. $2.75 per book
e. $2.00 per book

Explanation:

Step1: Calculate total cost

Total cost \(=12 + 10+8=\$30\)

Step2: Calculate total number of books

Total number of books \(=5 + 6+4 = 15\)

Step3: Calculate average cost per book

Average cost per book \(=\frac{30}{15}=\$2.00\)

Answer:

E. \(\$2.00\) per book