Answer:
applepies are 4 dollars each whereas pumpkin pies are 9 dollars each
Step-by-step explanation:
Answer:
let's call the apple pies "x" and "y" the pumpkin pies
now we are going to put 9x + 3y = 54 which is what Castel sold
and below this we are going to put 11x + 3y = 62 which is what Julio sold.
After this we choose one of the methods to solve these types of equations, in this case I will choose the equalization method so we do the following:
Step-by-step explanation:
in this case I am going to clear the "y" because is easier
1st step:
9x + 3y = 54 3y = 54 - 9x y = (54-9x)/3
-> ->
11x + 3y = 62 3y = 62 - 11x y = (62-11x)/3
2nd step:
we remove that 3 that is dividing the entire ecuation and it would be like this:
54-9x=62-11x
we put the "x" to one side and the other numbers to the other
-9x+11x=62-54
and we solve it
2x=8 -> x=8/2 -> x=4
3rd step:
We already know what the "x" is, now we need to know the "y" for doing this we take one of the first ecuations, i'm going to take this:
3y = 54 - 9x
We substitute the "x" for the number that has come out, in this case the 4
3y = 54 - 9 · 4
and we solve it
3y = 54 - 9 · 4
3y = 54 - 36
3y = 18
y = 18/3
y = 6
and our results are
x = 4
y = 6
so apple pies that were "x" would cost 4$ and pumpkin pies that were "y" would cost 6$
