7th Grade Math

(Marvins-Underground-K-12) #1

Test PracticeT


Lesson 3E Predictions 471


  1. SPINNERS In how many ways could the colors in the
    spinner shown be arranged so that red and blue remain
    in the same place?(Lesson 3C)

  2. TOOTHBRUSHES A dental hygienist randomly chooses a
    toothbrush in a drawer containing 12 purple toothbrushes,
    9 aqua toothbrushes, and 6 teal toothbrushes. What is
    the theoretical probability that an aqua toothbrush is
    chosen? Write as a fraction in simplest form. (Lesson 3B)

  3. A coin is tossed and a number cube is rolled. Find the
    probability of tossing tails and rolling an even number.
    (Lesson 2B)

  4. READING Mr. Steadman plans to read eight children’s novels
    to his second graders during the school year. In how many
    ways can he arrange the books to be read?(Lesson 1D)


PURPLE

GREEN

ORANGE
RED
BLUE


  1. The table shows how students spend
    time with their family.


How Students Spend Time with Family
Dinner 34%
TV 20%
Talking 14%
Sports 14%
Taking Walks 4%
Other 14%

Of the 515 students surveyed, about
how many spend time with their family
at dinner?
A. 17 C. 119
B. 34 D. 175


  1. Yesterday, a bakery baked 54 loaves of
    bread in 20 minutes. Today, the bakery
    needs to bake 375 loaves of bread. At
    this rate, predict how long it will take to
    bake the bread.
    F. 1.5 hours H. 3.0 hours
    G. 2.3 hours I. 3.75 hours
    14. Of the 357 students in a freshman class,
    about 82% plan to go to college. How
    many students plan on going to college?
    A. 224 C. 314
    B. 293 D. 325


15.
EXTENDED RESPONSE Mr. Freisen
surveyed his middle school
students about how much time they
spend playing video games each week.
The results are shown below.

Video Game Time Percent
Do not play 14
Around 1–5 hours per week 42
5–10 hours per week 32
10 or more hours per week 12

Part A What percent of students play
at least 5 hours or more per week?
Part B What percent of students play
video games during the week?
Part C Explain how you solved part b.

466_476_C08_L3_895130.indd 471 12/29/09 1:32 PM

Free download pdf