Session 2

 

34. Each day, approximately 60 million plastic bottles are thrown away in the United States. On average, how many plastic bottles are thrown away in the United States per hour?

Show your work.

 

 

 

Answer_________________________

 

 

 

35. Julie sold 125 frozen juice bars and 150 ice cream cones on Saturday. She made a total of $500. Julie sold each ice cream cone for $2.25.

Part A

Write an equation you can use to find the cost, c, of each frozen juice bar.

Equation____________________________________________

 

Part B

Solve the equation you wrote to find the cost of one frozen juice bar.

Show your work.

 

 

 

Answer________________________

 

 

 

EIGHTH-GRADE CLASS TRIP

The eighth-grade class at Central Middle School took a day trip to a local city park for the annual "Eighth-Grade Recreation Day." You were the event coordinator in charge of managing the budget, transportation, activities, and meals. It was a full day of activities with events planned for the morning and afternoon and a lunch break in between.

Directions: Now do numbers 36 through 38 about the eighth grade class trip on the following pages.
36. The class had a budget of $800 for the trip. They had reserved 55% of the money for food and beverages. The remainder of the money was used for transportation. If transportation costs $2.25 per person, how many students were able to participate?

    Show your work.

     

     

     

     

    Maximum number of students____________________

     

37. One event was a basketball tournament. For the tournament, the students were divided into 5 teams: A, B, C, D, and E. Each team played each other team once. How many games were played in all?

     

    Show your work.

     

     

     

    Answer__________

    m8_37pic.gif (26289 bytes)

 

38. One afternoon event was a race through the park. The race started at the point with the coordinates of (2, 3). The first turn was at (2, 6). The second turn was at (6, 6), and the third turn was at (6, 8). The race ended at (12,8).

39. Lucia’s mother has just opened a small business. The amounts of profit for each of the first 4 months the business was open are shown in the table below.

41. Graph the following inequality on the number line below.

    15 £ x < 22

    m8_41.gif (5690 bytes)

     

42. Deanna had 48 jelly beans. She ate 3/8 of her jelly beans. Her brother, Nathan, ate 2/3 as many jelly beans as Deanna ate. How many jelly beans did Nathan eat?

    Show your work.

     

     

     

    Answer________________________

 

43. Triangle ABC, shown below, is a right triangle.

m8_43.gif (3701 bytes)

What are tthe numerical values of the cosine and tangent of angle A?

 

 

Cosine A_______________________

 

 

Tangent A_____________________

 

 

44. Using the table, fill in the missing numbers for the 4 ordered pairs for the function:

    2x + y = 6

     

    Part A

    m8_44a.gif (11241 bytes)

    Part B

    On the grid below, graph the function 2x + y = 6. Be sure to label the 4 points with the coordinates from the table.

    m8_44b.gif (49304 bytes)

     

45. A shirt regularly sells for $22.50. It is on sale at the 15% discount. The sales tax is 8.5%.

Part A

What is the total price of the shirt on sale including tax?

Show your work.

 

 

 

Answer____________________

Part B

In determining the total price of the shirt, is there a difference between:

  • Adding the sales tax before subtracting the discount?

AND

  • Adding the sales tax after subtracting the discount?

 

Show your work and explain in words.