Equations for Real World

The perimeter of a rectangular garden is 90 feet. The length of the garden is 30 feet. What is the width of the garden?

Ethan scored the same number of points in his first 2 games. He scored 10 points in the third game. He scored a total of 32 points in all three games. How many points did Ethan score in each of the first two games?

• *p for # of points Ethan scored in each of the first two games

  3p - 10 = 32

  p = 14 points in each of the first two games

• *p for # of points Ethan scored in each of the first two games

  2p - 10 = 32

  p = 21 points in each of the first two games

• *p for # of points Ethan scored in each of the first two games

  2 + 10p = 32

  p = 3 points in each of the first two games

• *p for # of points Ethan scored in each of the first 2 games

  2p + 10 = 32

  p = 11 points in each of the first two games

Connor bought 5 bags of chips and a Gatorade. He spent a total of $7. The Gatorade cost $3. Each bag of chips cost the same amount. What was the cost of each bag of chips?

• *c for cost of each bag of chips

  3 + 5c = 7

  c = $0.80 for each bag of chips

• *c for cost of each bag of chips

  3c + 5 = 7

  c = $0.67 for each bag of chips

• *c for cost of each bag of chips

  5c - 3 = 7

  c = $2 for each bag of chips

• *c for cost of each bag of chips

  3c - 5 = 7

  c = $4 for each bag of chips

A group of 5 friends went to the movies. They had ONE $10-off discount. Each friend spent the same amount on each ticket. They spent a total of $53.75, AFTER the discount was taken off. What was the ORIGINAL price of each movie ticket, BEFORE the discount was taken off?

• *c for cost of each ticket before discount

  5c + 10 = 53.75

  c = $8.75 was the cost of each ticket before the discount

• *c for cost of each ticket before discount

  10c + 5 = 53.75

  c = $4.88 was the cost of each ticket before the discount

• *c for cost of each ticket before discount

  5(c + 10) = 53.75

  c = $0.75 was the cost of each ticket before the discount

• *c for cost of each ticket before discount

  5c - 10 = 53.75

  c = $12.75 was the cost of each ticket before the discount

During the summer, Cameron works 26 hours a week at a part-time job. He works 6 hours on the weekends and the same number of hours each weekday. How many hours does Cameron work each weekday?

• *h for # of hours Cameron works each weekday

  7 + 2h = 26

  h = 9.5 hours each weekday

• *h for # of hours Cameron works each weekday

  6 + 5h = 26

  h = 4 hours each weekday

• *h for # of hours Cameron works each weekday

  7h + 5 = 26

  h = 3 hours each weekday

• *h for # of hours Cameron works each weekday

  2h + 6 = 26

  h = 10 hours each weekday

When a tow truck is called, the cost of the service is $10 plus $1 per mile that the car must be towed.

• y= 10x +1

• y= x +10

• y= -10x + 1

• y= -x +10

Your new job is at the Custom T- Shop, where T-shirts are printed to order. For each order, Custom T Shop, charges $8.00 per shirt plus a one time set up fee of $15.00. Write a linear equation to show the relationship.

• y= -8x + 15

• y= 15x + 8

• y= -15x + 8

• y= 8x +15

When a plumber is called, the cost of the service call is $50 for him to show up at your house, plus an additional $25 per hour. Write a linear equation.

• y=50x + 25

• y= 25x + 50

• y= -25x - 50

• y= -50x -25

At a fair, Bob draws caricatures. He pays the fair $30 for the space to set up a table and $2 for each drawing he sells. Write a linear equation to show how much he pays total.

• y= 2x -30

• y= 2x + 30

• y= 30x + 2

• y= -2x + 30

The rental rate at Rent a Wreck is $30 per day plus $0.25 per mile driven. Write a linear equation to find the total cost for each day.

• y= 30x + .25

• y= -0.25x- 30

• y= 0.25x + 30

• y= -30x- 0.25