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A music-streaming service charges $9 per month for a single user. Additional users within the same household can be added for $3 per month. Write an equation that shows how the monthly cost, y, depends on the number of additional users in the household, X. Do not include dollar signs in the equation. y=​

User Rayman
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2 Answers

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25 votes

Final answer:

The equation representing the monthly cost of a music-streaming service with additional users is y = 9 + 3X, where y is the total monthly cost and X is the number of additional users.

Step-by-step explanation:

The requested equation to show how the monthly cost, y, depends on the number of additional users, X, in the household for a music-streaming service is given by:

y = 9 + 3X

In this equation, the 9 represents the flat rate charged per month for a single user, and 3 represents the additional cost per month for each additional user. X is the number of additional users. Therefore, for each additional user added to the service, the cost increases by $3.

User Farbodg
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23 votes
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Answer: Y = 3x + 9

Step-by-step explanation:

User Gabriella Angelova
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