Answer:
A. (x,y) - (2x,2y)
Step-by-step explanation:
Answer:
Explanation:
You can subtract the second equation from the first equation to eliminate y:
7x + y = 25 – 6x + y = 23: 7x – 6x = x; y – y = 0; 25 – 23 = 2
x = 2
You could also solve one equation for y and substitute that value in for y in the other equation:
6x + y = 23 → y = 23 – 6x.
7x + y = 25 → 7x + (23 – 6x) = 25 → x + 23 = 25 → x = 2
Step-by-step explanation:
You would first turn it into an improper fraction, to do this you leave the denominator(bottom number) then times it by your variable and add the numerator(top number)
Ex:
1 3/4x1/3= 7/12
Answer:
Step-by-step explanation:
Part A:
Given that the mattress is sold for 50% off of the retail price, let the retail price of the mattress be x, then
50% of x = 1200
⇒ 0.5x = 1200
⇒ x = 1200 / 0.5 = 2400
Therefore, the retail price of the mattress, before the discount is $2,400.
Part B:
Given that the store marks up the retail price to 150% of the wholesale price. Let the whole sale price be p, then
(100% + 150%) of p = 2400
250% of p = 2400
2.5p = 2400
p = 2400 / 2.5 = 960.
Therefore, the wholesale price, before the markup was $960
<h3>By Associative property of multiplication,</h3>
<em><u>Solution:</u></em>
<em><u>Given expression is:</u></em>
We have to use the associative property of multiplication
<em><u>Associative property of multiplication</u></em>
When we are multiplying two or three numbers, it does not matter where we put the parenthesis, it results in same answer
Therefore,
Thus associative property of multiplication is used to find solution
