Sandra earns $3 for each bead necklace that she makes. She spends all the money she earns from selling 8 necklaces on 4 books. Each book costs the same amount.

Question

Charms cost $2 each. How many bead necklaces would Sandra have to sell to buy 9 charms?

A.
6

B.
9

C.
11

D.
12

Answer 1

Sandra earns $3 x 8 = $24 from selling 8 bead necklaces.

She spent all the money on 4 books, so each book cost $24 ÷ 4 = $6.

To buy 9 charms at $2 each, she would need to spend $2 x 9 = $18.

For every 1 bead necklace she sells, she earns $3, so she would need to sell $18 ÷ $3 per necklace = 6 necklaces.

Therefore, the answer is A. 6.