Answer:
[tex]d = 15h[/tex]
Step-by-step explanation:
Given
[tex]Charges\ \alpha\ Time[/tex]
Represent charges with d and time with h
So:
[tex]d = \$37.50[/tex] when [tex]t = 2.50\ hours[/tex]
Required
Determine the formula
[tex]Charges\ \alpha\ Time[/tex]
In other words,
[tex]d\ \alpha\ h[/tex]
Convert to an equation
[tex]d = k * h[/tex]
Where
k = constant of proportion
Substitute values for Charges and Time
[tex]37.50 = k * 2.5[/tex]
Solve for k
[tex]k = 37.50/2.50[/tex]
[tex]k = 15[/tex]
Substitute 15 for k in [tex]d = k * h[/tex]
[tex]d = 15 * h[/tex]
[tex]d = 15h[/tex]
The above formula models the situation
