Make a verbal model

You are making a phone call from a public phone booth. The call will cost you 35¢ for the first minute and 15¢ for each additional minute or fraction of a minute. Write a verbal model with labels showing the total cost of the phone call.

Cost for first minute = 35¢
Cost for each additional minute = 15¢
Minutes after first = x
Total cost of call = y

y = 0.35 + 0.15x  
​{total cost equals cost for first minute plus cost for each additional minute times number of minutes}

Ask Algebra House