1.) The sum of two numbers is 51 and the difference is 23. What are the numbers?
Lager number:
Smaller number:
2.) Maya bought some books for $4 each and received a discount of $5 off of her total purchase. She spent $71 after the discount. How many books did she buy?
a. write an equation that could be used to answer the question above. first, choose the appropriate form ( +,- )with the numbers 4,5 and 71. let b represent the number of books.
b. solve the equation in part (a) to find the number of books?