7th Grade Math

(Marvins-Underground-K-12) #1

the Results



  1. How many seventh-grade students do not play a musical
    instrument?

  2. Suppose there had been 750 seventh-grade students.
    a. What would you do differently in Step 2?
    b. What is 60% of 750?


and Apply



  1. SCHOOL SPORTS The seventh-grade class at Fort Couch Middle School
    had a goal of selling 300 tickets to the annual student-teacher basketball
    game. The eighth-grade class had a goal of selling 400 tickets.
    a. By the end of the first week, the eighth-grade students sold 30% of their
    goal. Draw a bar diagram to represent this situation.
    b. How many tickets had the eighth grade sold?
    c. The seventh grade sold 40% of their goal. How many tickets do the
    students still need to sell? Use a bar diagram to justify your solution.

  2. ALLOWANCES The graph shows the results of a survey asking
    500 teens about their allowances.
    a. Draw a bar diagram to represent how many of the teens
    received between $10 and $20 as a weekly allowance.
    (Hint: Since 75% = _ 43 , divide the bar diagram into fourths.)
    b. How many teens did not receive between $10 and $20?
    Justify your solution.

  3. SOCIAL STUDIES Reggie has memorized 60% of the 50 state
    capitals for a social studies test.
    a. Draw a bar diagram to represent how many state capitals Reggie has
    memorized.
    b. How many more capitals does he need to memorize before the test?


E WRITE MATH Write a real-world problem for each bar diagram. Then solve
your problem.
6.

25

10%

25

10%

25

10%

25

10%

25

10%

25

10%

25

10%

25

10%

25

10%

25

10%

250

100%

7.

15 15 15 15

25% 25% 25% 25%

60

100%


NPSF
UIBO


MFTT
UIBO


m

Weekly Allowance

Lesson 1A Percents 319

318_330_C06_L1_895130.indd 319 12/30/09 4:02 PM

Free download pdf