Question

Nick has budgeted $30.00 per week for traveling expenses. He will spend $5.00 round trip per day to get to and from school.
Write an equation to represent this problem.

Use your equation to find out how much money he will have left after five days.

Answer 1

This will be a linear equation, he spends the same amount per round trip every time, that is the rate of change or slope of the line.

let x be number of days

Total Budget = (cost round trip per day) * (number of days)

Answer 2

or

Money Left = Budget - (cost round trip per day)*(number days)

Answer 3

y = 30 - 5.00*x

Answer 4

To answer the question replace the x in the equation by 5 & calculate the value of y