The length of a rectangle is 2 inches more than twice its width. Write an equation relating to its length of the rectangle to its width w.

The value of 3 - 22 tenths or 3 - 2.2 is determined as 0.8.

What is tenths?

Tenths are a way of expressing fractional parts of a whole number, where one whole is divided into ten equal parts.

So, if we have 22 tenths, it means we have 22 out of the 10 equal parts of a whole. This can also be written as 2.2, where the number after the decimal point (2) represents the number of tenths.

To find the value of 3 - 22 tenths, we can subtract 22 tenths from 3 as shown below.

The given expression in tenths;

= 3 - 22 tenths

The solution is calculated as follows

= 3 - 2.2

= 0.8

Thus, the value of 3 - 22 tenths or 3 - 2.2 is determined as 0.8.

Learn more about tenths here: brainly.com/question/1754326

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Answer: The class set up 495 chairs.

Step-by-step explanation:

Hi, to answer this question, first we have to multiply the number of rows (20) by the number of chairs in each row (25).

Mathematically speaking:

20x25= 500

Since they were 5 chairs short, we have to subtract 5 to the previous result.

500-5 = 495

The class set up 495 chairs.

Feel free to ask for more if needed or if you did not understand something.

Answer:

The students set up 495 chairs

Step-by-step explanation:

if there are 20 rows and 25 chairs in each row, then you multiply 20 by 25, giving you 500. They had 5 chairs too little, therefore they set up 495 chairs.

Hope this helps!