Question

What is the total number of seconds it takes for the teacher to make 1 copy 2 copies 3 copies by how many seonds does the total time increse for each copy

Answer 1

For 1 copy it takes 5 seconds, for 2 copy it takes 7 seconds, and for 3 copy it takes 9 seconds.

For each copy, it takes 2 seconds more.

Explanation:

A teacher is making multiple copies of a 1-page homework assignment. The time it takes her in seconds is 2 times the number of copies she makes plus 3. What is the total number of seconds it takes for the teacher to make 1 copy? 2 copies? 3 copies? By how many seconds does the total time increase for each copy?

Let the number of copies represented by x and y is the time taken.

The time It takes her in seconds is 2 times the number of copies she makes plus 3.

So the required equation is
`y=2x+3`.

To calculate the time taken for the first copy put x=1 in the above equation.

`y=2(1)+3`

`y=5`

To calculate the time taken for the first copy put x=2 in the above equation.

`y=2(2)+3`

`y=7`

To calculate the time taken for the first copy put x=3 in the above equation.

`y=2(3)+3`

`y=9`

Hence, For each copy, it takes 2 seconds more.