Let the number be x
The sum of 2 equal numbers is simply x+x or 2x.
Answer:
6x + 7
6 * 2
12 + 7
=19
Step-by-step explanation:
The time needed at 2 meters per second for both rounds would be 100/2 s or 50 seconds. For the first lane he already used 50/1.5 -> 33.33 seconds, so he would need to cover the other 50 meters in exactly 16.67. 50m divided by the 16.67 seconds he has left means he has to swim at a speed of 3 meters per second.
Answer:
I believe the last answer is correct
Step-by-step explanation:
Both runners are gaining money
