Answer:
Step-by-step explanation:
1. - 3x + 32 = - x - 12
-3x + x = - 12 - 32
-2x = - 44
x = 44/2 = 22
2. 8x + 16 = x + 9
8x - x = 9 - 16
7x = - 7
x = - 7/7
= - 1
3. 3x + 2 = 2x - 55
3x - 2x = - 55 - 2
x = - 57
7*6*5*4*3*2*1 = 7! = 5040
1*6*5*4*3*2*1 = 6! = 720
Okay, to work out the original price, all you have to do is get the sale price ($146.54) and then divide it by 1 - 0.[whatever the percentage is]. In this case, the percentage is 15%, so you do 1 - 0.15 = 0.85.
So to work out the original price, you do:
146.54 ÷ 0.85 = $172.40
The original price is $172.40. :)
We are given:
Set A = <span>{ X | X is an even whole number between 0 and 2}
This notation means that all integers X that is an even whole number between 0 and 2 is included in Set A. This means that set A is a null set. Since there are no even numbers between 0 and 2. </span>