Answer:
C. The product of 12 and √17
Step-by-step explanation:
Because it gives a number that isn't a repeating or terminating decimal.
Answer:
Explanation:
<u>1. Calculate the average speed of train B</u>
- 60mph = 3/4 (s) ⇒ s = 60 (4/3) mph = 80 mph
<u>2. Build a table</u>
When the two trains meet:
Train Average speed Distance time (distance/average speed)
mph
A 60 x x/60
B 80 240 - x (240 - x) / 80
<u>3. Write the equation</u>
The time, when the two trains meet, is the same for both trains:
![\dfrac{x}{60}=\dfrac{240-x}{80}\\ \\ \\ 80x=14,400-60x\\ \\ 80x+60x=14,400\\ \\ 140x=14,400\\ \\ x=14,400/140\\ \\ x=102.85miles](https://tex.z-dn.net/?f=%5Cdfrac%7Bx%7D%7B60%7D%3D%5Cdfrac%7B240-x%7D%7B80%7D%5C%5C%20%5C%5C%20%5C%5C%2080x%3D14%2C400-60x%5C%5C%20%5C%5C%2080x%2B60x%3D14%2C400%5C%5C%20%5C%5C%20140x%3D14%2C400%5C%5C%20%5C%5C%20x%3D14%2C400%2F140%5C%5C%20%5C%5C%20x%3D102.85miles)
<u>4. Calculate the time:</u>
- x/60 = 102.86 / 60 = 1.7 hours
The two trains will meet after 1.7 hours
The answer for that is A. 40 cubic in
Answer:
13.8 miles a gallon
Step-by-step explanation:
I think this because 345 divided by 25 equals 13.8 which would mean 13.8 miles for every gallon