7th Grade Regular Unit 8 Quiz

At Bright White Toothpaste factory, 15% of their products include a sensitivity ingredient. If they made 5,355 products without a sensitivity ingredient this week, how many total products were made?

• 803

• 945

• 4,551

• 6,300

The school wants to purchase new math textbooks for the students. They decide to use the information from a survey and purchase double the number of books for the number of students who chose textbooks as their preference. 45% of the students surveyed chose textbooks. Each textbook is $32.75. If there are 1875 students in the school, how much will the school pay for textbooks?

• $ 1,686.00

• $ 3,750.00

• $ 27,608.25

• $ 55,216.50

The circle graph shows the percentage of sales by category at the concession stand of the movie theater.

One night the concession stand had $110 in coffee sales. How much would you expect the total concession stand sales for the evening to be?

• $ 2,200.00

• $ 550

• $ 220

• $ 55

A bag of marbles has 12 green marbles, 5 red marbles, 8 blue marbles and 7 yellow marbles. What is the sample space for the experiment?

• A. 5, 7, 8, 12

• B. 32

• C. red, red, red, red, red, yellow, yellow, yellow, yellow, yellow, yellow, yellow, blue, blue, blue, blue, blue, blue, blue, blue, green, green, green, green, green, green, green, green, green, green, green, green

• D. red, yellow, blue, green

Carla had a deck of cards numbered 1 to 20. She randomly chose a card from the deck. Find P(an even number). Classify the like hood of the event.

• Certain

• Equally Likely

• Likely

• Unlikely

Quinn rolled a regular number cube 42 times. How many times would you predict he rolled a 6?

• 7

• 8

• 9

• 10

A bag of marbles has 12 green marbles, 5 red marbles, 8 blue marbles and 7 yellow marbles. What is the probability of randomly selecting a green marble? Select all that apply.

• .375

• 37.5%

Which of the following statements is true about the theoretical and experimental probability for the Huskies and Knights for the 2023 season?

• A. The Huskies experimental is lower than its theoretical.

• B. The Knights experimental was higher than the Huskies.

• C. The experimental of both teams is higher than the theoretical.

• D. The theoretical of both teams is higher than the experimental.

• E. The Huskies experimental is higher than the Knights.

If Elijah conducts the experiment 100 times, approximately how many green marbles would he expect to pull from the bag?

• 25

• 36

• 41

• 58

• A. Landing on purple is likely.

• B. Landing on blue is equally likely.

• C. There is a higher probability of landing on green.