Creating Equations

Create an equation that represents the following scenario: Sarah has 50 saved. She earns 10 per hour babysitting. Write an equation for the total amount of money ( M ) Sarah has after ( h ) hours of babysitting.

• M = 50 - 10h

• 60 = 50 - 10h

• M = 50 + 10h

• 50 - 10 = M

Calculate the total amount of money: John has 30 saved. He earns 15 per hour mowing lawns. Write an equation for the total amount of money ( T ) John has after ( h ) hours of mowing lawns.

• T = 30 - 15h

• T = 30 + 15h

• 45 = 30 + 15h

• 30 + 15 = T

Formulate an equation for the following situation: Emily has 100 saved. She earns 20 per hour tutoring. Write an equation for the total amount of money ( E ) Emily has after ( h ) hours of tutoring.

• E = 100 - 20h

• E = 100 + 20h

• 120 = 100 + 20h

• 100 + 20 = E

Determine the equation for the following scenario: Mike has 75 saved. He earns 25 per hour delivering newspapers. Write an equation for the total amount of money ( M ) Mike has after ( h ) hours of delivering newspapers.

• M = 75 - 25h

• M = 75 + 25h

• 100 = 75 + 25h

• 75 + 25 = M

True or False:

Domino's charges $7 per pizza. The delivery fee is $4. The equation is:

7x + 4 = y

• True

• False

Rohan and Avery are comparing their scores in a game. The statement that shows their scores are equal is indicated by an _____ sign.

Create an equation for the following word problem: A rectangle has a length that is 3 times its width. If the perimeter of the rectangle is 48 units, write an equation to find the width ( w ) of the rectangle.

[ 48 = ________(3w) + ________w ]

Hint: Use perimeter formula:

P = 2 ( l + w )

Formulate an equation for the following situation: Alex has 40 saved. He earns 30 per hour washing cars. Write an equation for the total amount of money ( A ) Alex has after ( h ) hours of washing cars.

• A = 40 - 30h

• A = 40 + 30h

• 70 = 40 + 30h

• 40 + 30 = A

Determine the equation for the following scenario: Lisa has 60 saved. She earns 15 per hour walking dogs. Write an equation for the total amount of money ( L ) Lisa has after ( h ) hours of walking dogs.

• L = 60 - 15h

• L = 60 + 15h

• 75 = 60 + 15h

• 60 + 15 = L

Create an equation that represents the following scenario: Kevin has 90 saved. He earns 35 per hour painting fences. Write an equation for the total amount of money ( K ) Kevin has after ( h ) hours of painting fences.

• K = 90 - 35h

• K = 90 + 35h

• 125 = 90 + 35h

• 90 + 35 = K