Answer:
Discounted price = $160
Step-by-step explanation:
Let x be the discounted price of shoes.
Given:
A department store has a discount on shoes based on a percentage of the price.
and marked down on one pair of shoes is $80 to $64.
So, the discounted rate = 80 - 64 = 16
therefore, the percent of discount is.
% value 
% value 
% value 
% value 
% value 
% value = 20%
Find the price for a $200 pair of shoes after the same discount is applied.
So the discount is 20% and the discounted price of the shoe is 80% of $200.
% value 
80 
x = $160
Therefore, the discounted price of the shoe is $160.
Answer:
10x²+11-2x
Step-by-step explanation:
I hope you mean 7x²+8+5, not 7x²+8x+5.
We need to combine like terms. Anything with squared should be added together, et cetera.
(7x²+8+5)+(3x²-2x-2)
You can take out the parenthesis, because they don't matter in addition.
7x²+8+5+3x²-2x-2
Add the terms, step by step. Each bold pair needs to be added together.
7x²+8+5+3x²-2x-2
10x²+8+5-2x-2
10x²+11-2x
Now there's no more we can add together.
Answer:
Ik im probably late but for those who may need it in the future. (3,-2)
Step-by-step explanation:
It would be the first one and the third one then the last
Answer:
Simplifying
2x + -15 + x + -5 = 148
Reorder the terms:
-15 + -5 + 2x + x = 148
Combine like terms: -15 + -5 = -20
-20 + 2x + x = 148
Combine like terms: 2x + x = 3x
-20 + 3x = 148
Solving
-20 + 3x = 148
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '20' to each side of the equation.
-20 + 20 + 3x = 148 + 20
Combine like terms: -20 + 20 = 0
0 + 3x = 148 + 20
3x = 148 + 20
Combine like terms: 148 + 20 = 168
3x = 168
Divide each side by '3'.
x = 56
Simplifying
x = 56
