Answer:
$1.65.
Step-by-step explanation:
Let x represent cost of each bag of birdseed.
We have been given that Andy bought 3 bags of a new birdseed mixture on sale. Cost of 3 bags of birdseed would be .
The birds in his yard like it so well that his friend Mike bought 5 bags. Cost of 3 bags of birdseed would be .
We are also told that together they spent $13.20, we can represent this information in an equation as:
Therefore, the cost of each bag of birdseed would be $1.65.
x = 23
2x + 19 + 5x = 180
I say this because it is an angle that is equivalent to the one adjacent to 2x+19, which is on a straight line. That means it is equal to 180.
7x + 19 = 180
180 - 19 = 7x
161/7 = x
I might have bought about 9 books