Question
Tammy bought some Social Science books at $10 each. She also bought an equal number of Literature books at a different price. The average price of one Social Science and one Literature book was $7. Tammy paid $18 less for the Literature books than the Social Science books.
  1. What was the cost of one Literature book?
  2. How many Social Science books did Tammy buy?
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Tammy bought some Social Science books at $10 each. She also bought an equal number of Literature books at a different price. The average price of one Social Science and one Literature book was $7. Tammy paid $18 less for the Literature books than the Social Science books.
  1. What was the cost of one Literature book?
  2. How many Social Science books did Tammy buy?