The mean is the average.
To find the mean, you add up all the numbers, and then divide by the number of numbers.
:P
For now, we can’t get a definite answer. We can model with an equation, but we cannot find the absolute amount Jocelyn will earn, as her hourly rates are both variables. All we must do to create an equation for this is multiply the amount of hours by the rate and add. You could model like this:
25n + 15x = total amount earned
Look at the picture i have attached. 8 tally marks are four lines with one crossed over plus three more separate lines
1) They are both right angle triangles
2) AE = BE
AB = AE + BE
AE = 4.2cm
AB = 4.2 + 4.2
AB = 8.4cm
