Question

This equation shows how the cost of a charity gala depends on the number of attendees. d = 5.1a + 11.6 The variable a represents the number of attendees, and the variable d represents the cost in dollars. How many attendees can there be, at most, if the budget for the charity gala is $98.30?

Answer 1

$98.30=5.1a+11.6
98.30-11.6=5a+11.6-11.6
86.7=5a
86.7/5=5a/5
17.34=a
So only 17 people can attend