Homework Explained - Math Practice 101

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Grade 7 HMH Go Math - Answer Keys

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  • Question 1 (request help)

    A pizza parlor offers thin, thick, and traditional style pizza crusts. You can get pepperoni, beef, mushrooms, olives, or peppers for toppings. You order a one-topping pizza. How many outcomes are in the sample space?

    • 3
    • 5
    • 8
    • 15
  • Question 2 (request help)

    A bag contains 9 purple marbles, 2 blue marbles, and 4 pink marbles. The probability of randomly drawing a blue marble is \(\large\frac{2}{15}\). What is the probability of not drawing a blue marble?

    • \(\frac{2}{15}\)
    • \(\frac{4}{15}\)
    • \(\frac{11}{15}\)
    • \(\frac{13}{15}\)
  • Question 3 (request help)

    During the month of April, Dora kept track of the bugs she saw in her garden. She saw a ladybug on 23 days of the month. What is the experimental probability that she will see a ladybug on May 1?

    • \(\frac{1}{23}\)
    • \(\frac{7}{30}\)
    • \(\frac{1}{2}\)
    • \(\frac{23}{30}\)
  • Question 4 (request help)

    Ryan flips a coin 8 times and gets tails all 8 times. What is the experimental probability that Ryan will get heads the next time he flips the coin?

    • 1
    • \(\frac{1}{2}\)
    • \(\frac{1}{8}\)
    • 0
  • Question 5 (request help)

    A used guitar is on sale for $280. Derek offers the seller \(\large\frac{3}{4}\) of the advertised price. How much does Derek offer for the guitar?

    • $180
    • $210
    • $240
    • $270
  • Question 6 (request help)

    Jay tossed two coins several times and then recorded the results in the table below

    What is the experimental probability that the coins will land on different sides on his next toss?

    • \(\frac{1}{5}\)
    • \(\frac{2}{5}\)
    • \(\frac{3}{5}\)
    • \(\frac{4}{5}\)
  • Question 7 (request help)

    What is the probability of tossing two fair coins and having exactly one land tails side up?

    • \(\frac{1}{8}\)
    • \(\frac{1}{4}\)
    • \(\frac{1}{3}\)
    • \(\frac{1}{2}\)
  • Question 8 (request help)

    Find the percent change from 60 to 96.

    • 37.5% decrease
    • 37.5% increase
    • 60% decrease
    • 60% increase
  • Question 9 (request help)

    A bag contains 6 white beads and 4 black beads. You pick out a bead, record its color, and put the bead back in the bag. You repeat this process 35 times. Which is the best prediction of how many times you would expect to remove a white bead from the bag?

    • 6
    • 10
    • 18
    • 21
  • Question 10 (request help)

    A set of cards includes 20 yellow cards, 16 green cards, and 24 blue cards. What is the probability that a blue card is chosen at random?

    • 0.04
    • 0.24
    • 0.4
    • 0.66

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