Open Up - Grade 7 - Mathematics - Unit 2 - Lesson 14

The equation c = 2.95g shows how much it costs to buy gas at a gas station on a certain day. In the equation, c represents the cost in dollars, and g represents how many gallons of gas were purchased.What does 2.95 represent in this situation?

Tags

7.RP.2.a

6.RP.3.a

7.RP.1

The equation c = 2.95g shows how much it costs to buy gas at a gas station on a certain day. In the equation, c represents the cost in dollars, and g represents how many gallons of gas were purchased.Jada’s mom remarks, “You can get about a third of a gallon of gas for a dollar.” Is she correct?

• She is correct the cost is a valid approximation.
• She is correct the cost is not a valid approximation.

Tags

7.RP.2.a

6.RP.3.a

7.RP.1

There is a proportional relationship between a volume measured in cups and the same volume measured in tablespoons. 3 cups is equivalent to 48 tablespoons, as shown in the graph. For which value y is (1,y) on the line you just drew?

Tags

7.RP.2.a

6.RP.3.a

7.RP.1

There is a proportional relationship between a volume measured in cups and the same volume measured in tablespoons. 3 cups is equivalent to 48 tablespoons, as shown in the graph. What is the constant of proportionality for this relationship?

Tags

7.RP.2.a

6.RP.3.a

7.RP.1