You and your friend are driving from nyc to philadelphia. there was terrible traffic leaving nyc so you drove 90 minutes at a constant rate of 40 mph. traffic improved, so suddenly you were able to travel the last part of the trip for 40 minutes at a constant rate of 60 mph. how long did it take for you and your friend to travel to philadelphia?

The graph shows the distance kerri drives on a trip. what is kerri's speed?

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.

Aplane intersects a pris paralel to the base of the prism. the cross section is a polygon wth eight sides. how many sides does the base of the prism have? a. 10 b. 8 c. 7 d. 9