a student baby sitting for $5 per hour writes the expression 5n to represent the money he makes for n hours. Another student writes 3n +15 to represent the amount in dollars. what is the second students hourly rate? what does the number 15 represents?
To find the second student's hourly rate, we need to look at the expression 3n + 15. The coefficient of n represents the hourly rate, so in this case, the hourly rate is 3 dollars per hour.
The number 15 in the expression 3n + 15 represents a fixed amount that the second student receives in addition to their hourly rate. It could be an additional fee or a base amount they receive regardless of the number of hours worked. In this case, the number 15 represents the fixed amount, so the second student receives an additional 15 dollars.