Answer:

Step-by-step explanation:
Let
x -----> Hermione was earning before the pay raise
we know that

so
The linear equation that represent this problem is

Solve for x
Divide by 1.05 both sides


Answer: <u>percentage = 53%</u>
Given:
800 total students
424 students blue favorite colore
Solve for:
percentage of students saying blue is their favorite color
Step-by-step explanation:

percentage = 424/800
percentage = 0.53 * 100 = 53%
percentage = 53%
<span>A = adult ticket price
C = child ticket price
2A + 3C = 31.50
1A + 5C = 35.00
multiply second equation by 2 and subtract the first equation
2A + 10C = 70.00
2A + 3C = 31.50
----------------------
7C = 38.5
C = 5.5
Plug in C to find A:
1A + 5 * 5.5 = 35.00
A + 27.5 = 35.00
A = 35.00 - 27.5
A = 7.5
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