at this rate how many trucks would pass Luann if 90 vechicles passed her
To answer the question, we need to know the rate at which the trucks are passing Luann. If we have this information, we can use basic arithmetic to calculate the number of trucks that would pass her.
Let's say the rate at which trucks are passing Luann is given as "X trucks per hour." In that case, to find out how many trucks would pass Luann, we need to divide the number of vehicles that passed her (90) by the rate of passing trucks (X).
The formula to find the number of trucks is:
Number of trucks = Number of vehicles / Rate of passing trucks
So, if you have the rate of passing trucks, you can simply divide the number of vehicles that passed Luann (90) by that rate to find the number of trucks that would pass her.