There was 11.54% decrease in attendance.
Step-by-step explanation:
Attendance in 2014 = Old value = 650
Attendance in 2015 = New value = 575
Change = New value - Old value
Change = 575 - 650 = -75
The negative sign indicates a decrease in attendance.
Decrease percentage = ![\frac{Change}{Old\ value}*100](https://tex.z-dn.net/?f=%5Cfrac%7BChange%7D%7BOld%5C%20value%7D%2A100)
![Decrease\ percent=\frac{75}{650}*100\\\\Decrease\ percent=\frac{7500}{650}\\\\Decrease\ percent=11.538\%](https://tex.z-dn.net/?f=Decrease%5C%20percent%3D%5Cfrac%7B75%7D%7B650%7D%2A100%5C%5C%5C%5CDecrease%5C%20percent%3D%5Cfrac%7B7500%7D%7B650%7D%5C%5C%5C%5CDecrease%5C%20percent%3D11.538%5C%25)
Rounding off to nearest hundredth
Decrease percent = 11.54%
There was 11.54% decrease in attendance.
Keywords: percentage, subtraction
Learn more about subtraction at:
#LearnwithBrainly
Simplifying
3a + 2b + c = 26
Solving
3a + 2b + c = 26
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '-2b' to each side of the equation.
3a + 2b + -2b + c = 26 + -2b
Combine like terms: 2b + -2b = 0
3a + 0 + c = 26 + -2b
3a + c = 26 + -2b
Add '-1c' to each side of the equation.
3a + c + -1c = 26 + -2b + -1c
Combine like terms: c + -1c = 0
3a + 0 = 26 + -2b + -1c
3a = 26 + -2b + -1c
Divide each side by '3'.
a = 8.666666667 + -0.6666666667b + -0.3333333333c
Simplifying
a = 8.666666667 + -0.6666666667b + -0.3333333333c