7.1B Mastery Quiz

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| By Jmstowell

Jmstowell

Community Contributor

Quizzes Created: 1 | Total Attempts: 582

Questions: 4 | Attempts: 582 | Updated: Mar 22, 2022

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Students who can answer all 4 questions with a 100% mastery are ready to move on from this TEK.

Questions and Answers

1.

The Crystal Clear Window Washing Company washed of a high rise building 's windows on Monday, on Tuesday, and on Wednesday. What percentage of the building's windows were not washed after three days?
- A.
  
  17.5%
- B.
  
  33%
- C.
  
  67%
- D.
  
  82.5%
Correct Answer
A. 17.5%

Explanation
After three days, the Crystal Clear Window Washing Company washed 100% of the building's windows. Therefore, the percentage of windows that were not washed is 0%. However, none of the given answer choices match this explanation. Therefore, the correct answer is not clear or available.

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2.

Mike received a 45% discount when he bought a new jacket. Which of the following is NOT equivalent to 45%?
- A.
  
  9/20
- B.
  
  4/5
- C.
  
  0.45
- D.
  
  45/100
Correct Answer
B. 4/5

Explanation
The answer 4/5 is not equivalent to 45% because when we convert 45% to a fraction, we get 45/100. However, 4/5 is equivalent to 80%, not 45%.

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3.

The glee club is trying to raise money for their trip to the national competition. So far, they have been able to raise $1,500 of the $5,000 that they need. Which of the following is NOT equivalent to ?
- A.
- B.
- C.
  
  30%
- D.
  
  0.3
Correct Answer
B.

Explanation
The correct answer is 0.3. This is because 0.3 is equivalent to 30%, as they both represent the same proportion or fraction of a whole.

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4.

Khalid read a numerical value as “one hundred twenty-five thousandths.” Which of the following shows an equivalent way to write this value?
- A.
  
  125,000
- B.
  
  125%
- C.
- D.
  
  12.5%
Correct Answer
D. 12.5%

Explanation
The correct answer is 12.5%. This is because "one hundred twenty-five thousandths" can be written as a decimal by dividing 125 by 1000, which gives 0.125. Multiplying this decimal by 100 gives 12.5%.

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Current Version
Mar 22, 2022

Quiz Edited by
ProProfs Editorial Team
Mar 13, 2013

Quiz Created by
Jmstowell

7.1b Mastery Quiz

The Crystal Clear Window Washing Company washed of a high rise building 's windows on Monday, on Tuesday, and on Wednesday. What percentage of the building's windows were not washed after three days?

Mike received a 45% discount when he bought a new jacket. Which of the following is NOT equivalent to 45%?

The glee club is trying to raise money for their trip to the national competition. So far, they have been able to raise $1,500 of the $5,000 that they need. Which of the following is NOT equivalent to ?

Khalid read a numerical value as “one hundred twenty-five thousandths.” Which of the following shows an equivalent way to write this value?