Question

shawna found out there are 4 yellow pencils for every blue pencil. write an equation for this situation. complete the table to show how many yellow pencils if there are 5,7, 9,11 or 13 blue pencils.

Answer 1

Explanation:

just multiply each of the given numbers by three to find the answer (5 x 3)

Answer 2

Explanation:

Let f(x) be number of yellow pencils and x be number of blue pencils.

We have been given that Shawna found out there are 4 yellow pencils for every blue pencil. We can represent this information in an equation as:

`f(x)=4x`

Therefore, our desired equation will be:
`f(x)=4x`.

Now let find number of yellow pencils for the given number of blue pencils by substituting the number of blue pencils in our equation as:

`f(5)=4\cdot 5`

`f(5)=20`

`f(7)=4\cdot 7`

`f(7)=28`

`f(9)=4\cdot 9`

`f(9)=36`

`f(11)=4\cdot 11`

`f(11)=44`

`f(13)=4\cdot 13`

`f(13)=52`