Linear Word Problem Equation

A holiday meal costs $12.50 a person plus a delivery fee of $30.  Which equation represents the amount a holiday meal costs, including delivery, for x people?

• y = 30 + 12.5x 

• y = 12.5 + 30

• y = 12.5 + 30x

A man is climbing down from 100 feet high descending 30 feet per minute.

• y = 100 - 30x

• y = 100 + 30x

• y = 100x + 30

• y = 100x - 30

Bob has $150 in his savings account and saves $40 per month.  Which equation represents the amount Bob has in his account after x months?

• y = 150 + 40

• y = 40x + 150

• y = 150x + 40

The rental rate at Rent A Wreck is $30 per day plus $0.25 per mile driven.

Which equation represents this situation?

• y= 30x + 0.25

• y= 25x + 30

• y= 0.25x + 30

• y= 0.25 + 30

Given the table, write the equation in the slope-intercept form.

• y = 1/3x + 6

• y = 3x + 6

• y = 2x + 6

• y = 1/2x + 6

If I join the gym for a start up fee of $40 and monthly fee of $10, what equation models this?

• y = 10x - 40

• y = 40x + 10

• y = 10x + 40

• y = 40x - 10

The difference of a and b is 3. The sum of the variables is 13. Find the numbers.

• a = 7
  b = 10

• a = 8
  b = 5

• a = 10
  b = 13

Some horses and chickens are in a pasture. If there are a total of 28 animals and 80 legs, how many chickens and how many horses are there? (Hint: Write simultaneous equations and then solve)

• 10 horses, 18 chickens

• 16 horses, 12 chickens

• 12 horses, 16 chickens

• 18 horses, 10 chickens

A store sells t-shirts for $12 each and sweatshirts for $15 each. You plan to spend $120 on t-shirts and sweatshirts. If there are 9 clothes altogether,
How many T-shirts can be bought?

• 4

• 5

• 6

• 7

Two integers have a sum of 16. One of the integer is four more than the other. Find the product of the two integers.

• 10

• 20

• 40

• 60