Instead of looking at the hole number of: 24 You should just break it down into two parts. The first part is 20 and the second is 4. The rest is easy, multiply 4x6 which gives you 24, and 20x6 which gives you 120. And then just add them, 120+24=144
Answer:
10 hours
Step-by-step explanation:
Given:
Average speed of submarine = 10 mph
Speed of carrier in the opposite direction = 20 mph
Distance between the submarine and carrier = 300 mi
To find:
The time taken so that the distance between them is 300 mi ?
Solution:
The relative speed when they are traveling in opposite direction = 10+20 = 30 mph
Formula:


So, the answer is <em>10 hours</em>.
The first bullet is correct.