Math POD Spiral - Day 2

Select ALL expressions shown that are equivalent to

³/₅ a + 10

• ¹/₅ a + 10 + ²/₅ a

• a (³/₅ + 10)

• 14 + ³/₅ a − 4

• ¹/₅ (3a + 50)

• 10 + ²/₅ a - a + ¹/₅ a

At a local gym, a random sample of 75 members took a survey about their favorite type of exercise.

Gym Survey Results:

Bicycling - 18

Exercise Classes - 22

Running on a Treadmill - 15

Weight Lifting - 20

There are 350 total gym members. Based on the results of the survey, what is the most reasonable estimate for the number of gym members who prefer running on a treadmill?

• 23

• 93

• 70

• 85

While on a camping trip, Calvin was monitoring the temperature.

• In the afternoon, the temperature was –3°C.

• As the evening progressed, the temperature dropped 9°C.

• By mid-morning the next day, the temperature had risen 2°C.

What was the temperature, in degrees Celsius, after these changes?

• -14°C

• 8°C

• 6°C

• -10°C

Karen gets 4 books from her book club for $20. She creates a graph to show the relationship between the number of books and the total cost of the books. Points

on the graph include (0,0), (1, 5), (2, 10), and (3, 15).

Choose the ordered pair that represents unit rate.

• (0, 0)

• (1, 5)

• (2, 10)

• (3, 15)

Write ⁷/₈ as a decimal.

• 0.78

• 1.142

• 0.86

• 0.875