For this case, the first thing we must do is define variables.
We have then:
x: Maggie's age
y: Age of Maggie's brother
We write the system of equations that models the problem.
We have then:
We solve the system of equations.
For this, we use substitution:
From here, we clear the value of x:
Answer:
Maggie is 9 years old
<h2>SOLVING</h2>
Find the point-slope equation of the line, with the info given
Formula used,
| result
The answer is 0.00010224...
14.285714285714%
Convert fraction (ratio) 12 / 84 Answer: 14.285714285714%