Since the pentagon is regular, the sides are all of equal length. This tells you
... 5x-27 = 2x-6
... 3x = 21 . . . . . . . add 27-2x
... x = 7
The length of a side can be found by subtituting this value into either expression.
... 2·7-6 = 8 . . . . inches
Finally figured it out :D
The function rules is:
y = -5x - 1
9 = -5(-2) - 1
4 = -5(-1) - 1
-1 = -5(0) - 1
-6 = -5(1) - 1
-11 = -5(2) - 1
3•y+2
3 and y are being multiplied and then you add the two!:)
I need a question to answer first.
So the number of pencils bought can be represented by an equation:
, where n is the number of notebooks bought. Since Helen bought 5 notebooks, simply plug 5 into n:
. So Helen bought 12 pencils.
