6th Grade Math Textbook, Progress

Explain how you solved each problem. Show all your work.

23. The graph shows the speed of a bicycle after
    5, 10, 15, 20 minutes.
    a. What type of graph is it?
    b. After riding for exactly 10 min, what was
    the speed of the bike?
    c. Section B to C shows no change in speed.
    What other section shows no change?
    d. Which section(s) show where the bike is
    going uphill? downhill? Explain your answer.


24. If the probability of an event is 0, then 19.Suppose that Eis an event in a sample
    space. Which cannot be true?
    a. it is certain.
    b. it is impossible.
    c. it is probable but certain.
    d. it is probable but not impossible.


25. A marble is selected from among 5 red and
    4 blue marbles, replaced, then a second
    marble is selected. P(red, red)
    ?

20.Which value of xwill make the mean of the

data below equal to 6?

{3, 3, 4, 5, 6, 7, 8, x}

a. x
 8 b. x
 12

c. x
 16 d. x
 48

c. P(E)


d. P(E)
1.2

7

a. P(E)
0.75 9

b. P(E)
0.33

a. • b. 

c.^59 •^38 d. 95 ^38

4

9

5

9

5

9

5

9

17. Choose the quotient.

213 ^23

21.Choose the value of n.

n 3
(^579)

18. The temperature was 15°F at 7:00 A.M.
    It rose 25 degrees by noon and then
    dropped 8 degrees by 5:00 P.M. What was
    the temperature at 5:00 P.M.?

22.In a survey that asked if they preferred

soccer or tennis, 7 out 10 people chose

soccer. Based on the results of the survey,

how many people would you predict to

choose tennis out of a group of 1000 people?

a. 2 b. 2

c. 312 d. (^316)
2
3
2
9 a. n
^8 b. n
^2
c. n
213 d. n
(^149)
4
9
7
9
a. 12°F b. 10°F
c. 2°F d. 2°F
a. 700 people b. 300 people
c. 70 people d. 30 people
510152025
0
5
10
15
Speed (mi/h)
Time (minutes)
A
B C
D
E F
G
Bicycle Ride
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