Katalin drove 180 miles on her vacation. she drove an average of 1.5 times faster on the second 90 miles of her trip than she did on the first 90 miles of her trip. which expression represents the time she spent driving? let x = her speed on the first half of the trip.
a. 150/x
b. 300/x
c. 150x
d. 225/x

A)

Step-by-step explanation:

We know that

Let x be her speed on the first half of the trip.

Then for first half , the time taken by her is given by :_

For second half , the time taken by her is given by :_

Now, the total time taken by her is given by :_

Hence, the expression represents the time she spent driving is

i need more information

step-by-step explanation:

choice b is correct

step-by-step explanation:

we have been given the following system of inequalities;

we are required to graph the solution to the system of inequalities. using a graphing tool, the graph of the system is as shown in the attachment. the continuous line represents the graph of while the dotted line represents .