Question

vehicles passing over a bridge have two options for paying their bridge toll: paying with a live cashier or using a speed pass device affixed to the dashboard. data on a busy day for cars and trucks passing over the bridge are shown here. what percentage of vehicles are trucks, given that they use speed pass? 28.1% 41.2% 68.3% 72.3%

Explanation:

Step1: Identify relevant values

We need to find the number of trucks using Speed Pass and total number of vehicles using Speed Pass.
Number of trucks using Speed Pass = 47.
Total number of vehicles using Speed Pass = 114.

Step2: Calculate the percentage

The formula for percentage is $\frac{\text{Number of trucks using Speed Pass}}{\text{Total number of vehicles using Speed Pass}}\times100\%$.
So, $\frac{47}{114}\times100\%$.
Calculate $\frac{47}{114}\approx0.412$.
Then $0.412\times100\% = 41.2\%$.

Answer:

41.2%