Answer:
13.882
Explanation:
To find the number of days Madelyn rented the bike, we can use the following equation:
Total cost = Flat rental fee + (Daily rental fee × Number of days)
In this case, the total cost is given as $123, the flat rental fee is $5, and the daily rental fee is $8.50. Let's plug in these values into the equation:
$123 = $5 + ($8.50 × Number of days)
To isolate the variable (number of days), we can subtract $5 from both sides of the equation:
$123 - $5 = $8.50 × Number of days
Simplifying further:
$118 = $8.50 × Number of days
To solve for the number of days, we can divide both sides of the equation by $8.50:
Number of days = $118 ÷ $8.50
Using a calculator, we find:
Number of days ≈ 13.882
Since we can't have a fraction of a day, we can round the answer to the nearest whole number. Therefore, Madelyn rented the bike for approximately 14 days.