16.2 because when you times 9 with 9 you get 81.
After that you divide 81 by 5 and you get 16.2
Answer:
Step-by-step explanation:
100.9
Answer:
The first car was traveling 70 mph, while the second was driving 50 mph.
Step-by-step explanation:
Set the cars as a proportion:
X represents the speed of the second car. By cross multiplying, you get the following equation:
You solve by distributing 150 to get 210x = 150x + 3000.
Solving for x gets you 50.
That means the first car was going at 50 mph. Adding 20, you get 70 as the speed for the second car.
Answer:
True
Step-by-step explanation: