Using a proportional relationship, we have that:
The cost of a 6-mile ride during high-demand hours is $21.56.
<h3>What is a proportional relationship?</h3>
A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:
y = kx
In which k is the constant of proportionality.
In this problem, the function is:
f(x) = 2.30x.
The cost for 6 miles is:
f(6) = 2.30 x 6 = $13.8.
5 plus 120% of that is:
1.2 x 13.8 + 5 = $21.56.
The cost of a 6-mile ride during high-demand hours is $21.56.
More can be learned about proportional relationships at brainly.com/question/10424180
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