7th Grade Check-In #1 Review - NC.7.RP.2

7th Grade Check-In #1 Review - NC.7.RP.2 (part 1)

Calories burned and minutes of exercise

The table below shows the relationship between the number of calories burned and the minutes of exercise.

Multiple Choice

Which equation could be used to find the number of calories burned (c) in relation to the minutes (m) of exercise?

• $c=\frac{3}{25}m$

• $c=\frac{25}{3}m$

• $c=150m$

• $c=220m$

Roller Rink F

The graph shows the total cost for different numbers of people to skate at Roller Rink F.

Roller Rink G

At Roller Rink G, the cost for different numbers of people to skate is shown in the table.

Multiple Choice

Which statement is true?

• Roller Rink F charges $0.50 more per person than Roller Rink G.

• Roller Rink G charges $0.50 more per person than Roller Rink F.

• Roller Rink F charges $1.00 more per person than Roller Rink G.

• Roller Rink G charges $1.00 more per person than Roller Rink F.

Joe's Repair Shop

Joe charges $105 for 3 hours of car repairs, and $245 for 7 hours of car repairs.

Mike's Repair Shop

The cost for Mike to repair a car is shown in the graph below.

Multiple Choice

Based on the information, which statement is true?

• Joe charges $10.00 more per hour than Mike.

• Mike charges $10.00 more per hour than Joe.

• Joe charges $5.00 more per hour than Mike.

• Mike charges $5.00 more per hour than Joe.

Company W

The cost to ship a package using company W can be represented by the equation

 $y=5x$  
where x is the weight, in pounds, of a package. 

Company Z

The graph to the right show the cost to ship a package using company Z.

Multiple Choice

If a 10-pound package needs to be shipped, which statement is true?

• It will cost $1 less to ship the package with company W than with company Z.

• It will cost $1 less to ship the package with company Z than with company W.

• It will cost $10 less to ship the package with company W than with company Z.

• It will cost $10 less to ship the package with company Z than with company W.

Stephanie

Stephanie tracked how far she traveled each hour of her trip. Her results are recorded in the graph to the left.

John

John used the equation

 $y=50x$  
to calculate his average distance traveled, where y is the distance in miles and x is the time in hours. 

Multiple Choice

Based on the information, which statement is true?

• John traveled 2 miles per hour faster than Stephanie.

• Stephanie traveled 2 miles per hour faster than John.

• John traveled 10 miles per hour faster than Stephanie.

• Stephanie traveled 10 miles per hour faster than John.

State Fair

The cost of ride tickets at the state fair is given by the equation

 $y=0.75x$  

County Fair

The graph to the left shows the cost of ride tickets at the county fair.

Multiple Choice

What is the difference between the cost of a ticket at a state fair and a ticket at a county fair?

• $0.25

• $0.50

• $0.75

• $1.00