Question

Noah bought 15 baseball cards for $9.00. Assuming each baseball card costs the same amount, answer the following questions:

a. At this rate, how much will 30 baseball cards cost?

b. At this rate, how much will 12 baseball cards cost?
1) $18.00
b. $6.00
2) a. $30.00
b. $12.00
3) a. $45.00
b. $18.00
4) a. $15.00
b. $4.50

Answer 1

At a rate of $0.60 per card, 30 baseball cards will cost $18.00, and 12 baseball cards will cost $7.20.

Step-by-step explanation:

Noah bought 15 baseball cards for $9.00, which means each card costs $0.60 (9.00 ÷ 15).

1. To find out how much 30 baseball cards would cost at this rate, multiply 0.60 by 30. So, 30 cards × $0.60 per card = $18.00.
2. For 12 baseball cards, multiply 0.60 by 12. Thus, 12 cards × $0.60 per card = $7.20.

The correct answers are: a. $18.00 for 30 baseball cards and b. $7.20 for 12 baseball cards.