Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 McGraw Hill Glencoe - Answer Keys
Chapter 9: Probability; Lesson 7: Independent and Dependent Events


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Standardized Test Practice

  • Question 29 (request help)

    Juan is holding four straws of different lengths. Four of his friends each randomly pick a straw. Milo picks first, and keeps the shortest straw. What is the probability that Frank will get the longest straw if he picks second?
    • \(\large\frac{1}{4}\)
    • \(\large\frac{1}{2}\)
    • \(\large\frac{1}{3}\)
    • \(\large\frac{1}{5}\)
  • Question 30 (request help)

    The spinners are each spun once.

    What is the probability of spinning 2 and white?
    • \(\large\frac{1}{16}\)
    • \(\large\frac{1}{4}\)
    • \(\large\frac{2}{5}\)
    • \(\large\frac{3}{5}\)

Common Core Review

Solve each proportion.

  • Question 32 (request help)

    \(\large \frac{8}{n}=\frac{0.5}{0.9}\)
  • n =    
  • Question 33 (request help)

    \(\large \frac{1}{3}=\frac{m}{153}\)
  • m =    
  • Question 34 (request help)

    \(\large \frac{0.2}{a}=\frac{1.8}{18}\)
  • a =    
  • Question 35 (request help)

    9 is 15% of what number? Write an equation. Then solve.
  • x =   
  • Question 36 (request help)

    A school librarian surveyed students about their favorite type of novel. The results are shown in the table below. What percent of students chose science fiction as their favorite type of novel? Round to the nearest whole percent.
  • about   %

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