To find the incompleted portion of the test, convert the decimal to a percentage by moving the decimal two places to the right. .7 as a percentage is 70%. subtract 70% from 100%, giving you 30%. Juan has not completed 30% of his test, or 5 questions.
Answer:
2/-3 ÷ 2 3/4
Convert the mixed fraction to an improper fraction
2/-3 ÷ 11/4
Change the division sign to multiplication sign ( × ) and reverse the second fraction
That's
2/-3 × 4/11
= -8/33
Hope this helps
To solve the problem we must know about the Ratio.
<h2>What is Ratio?</h2>
A ratio shows us the number of times a number contains another number.
The length of the living space, in reality, is 21 meters.
Given to us
- The scale is given as 2 centimeters equals 2.5 meters.
To find
- the actual length of the living space if the length of the scale drawing is 16. 8 centimeters
<h3>Scale ratio</h3>
As it is given that 2 cm on the scale drawing is equal to 2.5 meters in real, therefore, the ratio can be written as

<h3>Length of the living space</h3>
Using the same scale ratio,


Hence, the length of the living space, in reality, is 21 meters.
Learn more about Ratio:
brainly.com/question/1504221