Answer:
The single decimal multiplier is 0.9152
Step-by-step explanation:
Here, we want to write a single decimal number that would work as to decrease an original value by 12% and increase it also by 4%
Let the original value be x
12% = 12/100 = 0.12
So decreasing by 12% would be x-0.12x = 0.88x
Now this 0.88x, we shall increase it by 4%
4% is same as 0.04
Thus by increasing , we have;
0.88x + 0.04(0.88x)
= 0.88x + 0.0352x = 0.9152x
So the single factor we are multiplying by is 0.9152
Answer:
n = - 
Step-by-step explanation:
Given
- 8n = 13 ( divide both sides by - 8 )
n = 
= -
Answer:
20 pounds divided by $4= 5
Step-by-step explanation:
2x+3y= -17
5x+2y= -4
You must cancel either the x or y out to solve so i'm going to cancel the x.
-5(2x+3y= -17)
2(5x+2y= -4)
This simplifies to:
-15x -15y=85
15x+4y= -8
The -15x and 15x cancel out leaving you:
-15y=85
4y= -8
You add them top numbers by the bottom and get:
-11y=77
Then divide by -11 to get y by its self.
y= -7
Now that you know what y is just plug it in to either original problem. I will use the second one.
5x + 2(-7) = -4
5x -14 = -4
5x = 10
x = 2
So the answer is (2,-7) or x=2 and y=-7
