Question

If 70% of the members remembered the password but 21 members forgot, then how many members were there in all?

Please show work if you can
Thxs

Answer 1

70 members

Explanation:

Let's call the number of total members x. We know that 30% or
`(3)/(10)` of the members forgot, so our equation looks like this:

`(3)/(10)x = 21`

Then, we will multiply both sides by 10 to get rid of the fraction:

3x = 210

Finally, we will divide both sides by 3 to find out our variable, x:

x = 70

So, there are 70 members in total.

Hope this helped!