Answer:
Explanation:
Consider your sister as x and you as y.
If your sister and you have together 60 dollars, you write it just like that:
X+y = 60 (This is the 1st equation)
The second equation is:
You have 50% more than your sister. So, we can write in a algebraic way:
Y = 1.5x
(Why did I write 1.5x? Because you have all money that your sister have plus 50% of this amount!)
Now, you can build a system of equation
x+y=60
Y=1.5x
I’m choosing the substitution method:
X + 1.5x = 60
2.5x = 60
X = 24
Finally, your sister should have $24