Assessment Ox2 + 4x-3
3. 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

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.

i got 10.28 but that rounds up to 10.3

answer: the proof is mentioned below.

step-by-step explanation:

since, given:   lines bc = ef

prove:   lines ac > ef

          statements                                           reason

1. bc=ef                                           1. given

2. ac= ab+bc                                 2. because b is the point between the  

                                                            line segment ac

3.   ac > bc                                       3. because if a line segment is equal to

                                                          the sum of two line segments then it is

                                                          always greater then each of these

                                                          individual line segments

4. ac > ef                                         4. by equality property.