Question

Evaluate 4 times a number q plus 25 when q=2

Answer 1

Hi, there!

_______

4 times a number "q" = 4q

"Plus 25" +25

Putting these two parts together

`\sf{4q+25}`

Now, we can't evaluate this expression (like we're asked) unless we know what q is. And it happened that we are given what q is, it's 2. So, we can substitute its value into the expression:

`\sf{4(2)+25}`

`\sf{8+25}`

`\sf{33}`

Hope the answer - and explanation - made sense.

happy studying!!