Question

the attendant at a parking lot compared the number of hybrid vehicles to the total number of vehicles in the lot over a weekend. the ratios for the three days were equivalent. complete the table.
day
fri.
sat.
sun.
hybrids
5

35
total
9
72

Explanation:

Step1: Find the ratio

The ratio of hybrids to total on Friday is \(\frac{5}{9}\).

Step2: Set up proportion for Saturday

Let the number of hybrids on Saturday be \(x\). Since the ratios are equivalent, \(\frac{x}{72}=\frac{5}{9}\).
Cross - multiply: \(9x = 5\times72\).

Step3: Solve for \(x\)

\(9x=360\), then \(x=\frac{360}{9}=40\).

Answer:

40