Final answer:
The original value of the dollar before a 5.15% increase that led to $73 was approximately $69.41.
Step-by-step explanation:
The student is asking for the original value before an increase percentage was applied. To solve this, you want to approach the problem by considering the final amount is the original amount after the increase has been applied. The increase is given as 5:15% (which might be a typo, but suggests 5.15%). If $73 is reached after this increase, you would set up the equation:
Original Amount × (1 + Percentage Increase) = New Amount
Original Amount × (1 + 0.0515) = $73
To find the original amount (OA), you would divide the new amount by the increased percentage factor:
OA = $73 / (1 + 0.0515)
OA = $73 / 1.0515
OA = approximately $69.41
So the original value of the dollar was approximately $69.41 before the increase.