Evaluating Equations with Two Variables

Bob's cat weighs 6 pounds more than his rabbit. His dog weighs 3 times as much as his cat. Let r be the weight of Bob's rabbit. How much does his dog weigh?

Tags

CCSS.6.EE.B.6

Bob's cat weighs 6 pounds more than his rabbit. His dog weighs 3 times as much as his cat. How much does the dog weigh if the rabbit weighs 5 pounds?

• 15 pounds

• 21 pounds

• 33 pounds

• 23 pounds

Tags

CCSS.7.EE.B.4A

The table shows solutions to one of the equations below. Choose the related equation.

• y = 3.5x

• y = x + 10

• y = 2x + 3

• y = 3x + 2

Tags

CCSS.6.EE.C.9

Four friends share dinner. They use a $12 off coupon, and share the remaining cost equally. The equation represents the total cost of dinner, d, in relation to the cost of dinner per person, C.

Which graph shows this equation?

(The independent variable, d, is along the x-axis.)

• 
• 
• 
• 

Tags

CCSS.8.EE.B.5

Which ordered pair is included in the graph of the equation below?y = 5x - 3

• ( 2 , 7 )

• ( 2, 13 )

• ( 2 , 10 )

• ( 7 , 2 )

Which point represents a solution to the equation below? y = 3x + 4

• ( 10 , 2 )

• ( 2 , 10 )

• ( 5 , 15 )

• ( 15 , 5 )

The graph below represents the cost, y, based on the amount of cakes bought, x.

Which equation represents the situation?

• y = 20x

• y = 15x

• y = x

• y = 3/2 x

Tags

CCSS.8.EE.B.5

The equation d = 50t represents the average distance a car travels, d, related to time passed in hours, t.

If the car traveled 10 miles, how many hours did the car travel for?

• 5,000 hours

• 50 hours

• 2 hours

• 0.2 hours

Tags

CCSS.HSF-LE.A.1B

The table shows the ounces of water,y, need to for x number of servings.

Based on the information in the table, which equation can be used to model the relationship between x and y?

• y = 2x

• y = x + 2

• y = 18x

• y = x + 18

Tags

CCSS.6.EE.C.9

Which of these equations represent the table above if the number of tickets represents x and the total cost represents y?

• y=2x

• y=54x

• y=27x

• y=x

Tags

CCSS.6.EE.C.9