Cost of Songs and Membership

In this lesson, Mustapha guides students through understanding equations by calculating costs associated with a music store membership and song purchases. The lesson involves creating expressions and equations to determine total costs and testing different scenarios to see how many songs can be purchased within a budget. The exercise concludes with verifying the correct number of songs that can be bought.

What is the total cost if Sofia buys a membership and two songs?

• $19.99

• $22.00

• $21.97

• $20.98

How much does each song cost in the music store?

• $1.50

• $0.50

• $1.00

• $0.99

What is the expression for the total cost if Sofia buys 'n' songs?

• $19.99 + 0.99n

• $19.99n + 0.99

• $19.99n

• $0.99n

What does the expression $19.99 + 0.99n represent?

• The cost of 'n' songs only

• The membership fee only

• The cost of a single song

• The total cost of a membership and 'n' songs

What equation would you use to find out how many songs can be bought with $118?

• $0.99n = $19.99

• $19.99n = $118

• $118 = 0.99n

• $19.99 + 0.99n = $118

If Sofia's friend has $118, how many songs can she buy?

• 98 songs

• 101 songs

• 99 songs

• 100 songs

What is the total cost if Sofia's friend buys 101 songs?

• $119.98

• $120.00

• $118.99

• $118.00

Why can't Sofia's friend buy 100 songs with $118?

• The cost per song is too high

• She can buy 100 songs

• The membership fee is too high

• The total cost exceeds $118

What is the total cost if Sofia's friend buys 99 songs?

• $119.00

• $117.99

• $118.99

• $118.00

What is the conclusion of the exercise regarding the number of songs Sofia's friend can buy?

• She cannot buy any songs

• She can buy 99 songs

• She can buy 100 songs

• She can buy 101 songs