Answer:
The cost of each pair of shoes before the discount=$67.65
Step-by-step explanation:
Step 1
Use the expression below to determine original cost of the 2 pairs of shoes as follows;
A=O-R
where;
A=total bill after discount
O=original cost of 2 pairs of shoe
R=discount amount
In our case;
A=$110.50
O=unknown=x
R=15% of O=(15/100)×x=0.15 x
replacing;
115=x-0.15 x
115=0.85 x
x=115/0.85
x=135.294
Original cost of the 2 pairs of shoes=$135.294
Original cost of a pair of shoes=135.294/2=$67.65
The cost of each pair of shoes before the discount=$67.65
Think of exponents as multiples of that variable. So x^2 is x*x and y^2 is y*y. If you divided x*x by x, you'd get just x. Dividing just subtracts from the total when everything is being multiplied. So for the first term, 24(x^2)(y) / -4(x)(y) is -6(x)
Answer:
The answer will be 144
Step-by-step explanation:
So first you going to do is solve 3^2 and that will give you 9.
Then you multiply 12*9 and that will give you 108 then you add 36 and that will give you 144.
