Answer:
The correct option is;
Step-by-step explanation:
The given expression is presented as follows;
Which can be expanded into the following form;
From which we have;
Therefore, substituting the value of n = 50 we have;
Which gives;
Therefore, we have;
.
Using a system of equations, it is found that Peter had $48 at first.
<h3>What is a system of equations?</h3>A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the variables are:
The ratio of peters money to henrys money is 4 : 3, hence:
After Peter spent $12, they had the same amount, hence:
y = x - 12.
Then, replacing in the ratio:
4(x - 12) = 3x
x = 48.
More can be learned about a system of equations at brainly.com/question/24342899
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