Two cars a and B are going towards each other from ab at different speeds. They meet on the way. The meeting place is 70km away from A. after meeting, the two cars continue to move forward at the same speed

Two cars a and B are going towards each other from ab at different speeds. They meet on the way. The meeting place is 70km away from A. after meeting, the two cars continue to move forward at the same speed

Two cars a and B are going towards each other from ab at different speeds. They meet on the way. The meeting place is 70km away from A. after meeting, the two cars continue to move forward at the same speed
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A and B set out at the same time from a and B which are 2000 meters apart. They met each other four minutes later. It is known that B's speed is 5 meters per second, so we can find the speed of A

Let a's velocity be X. according to the equation, we get 240x + 5 × 240 = 2000, and the solution is x = 103m / s. answer: A's velocity is 103m / s

The speed ratio of car a and car B is 7 to 5. The distance between the two cars is from the midpoint when they meet
The distance between the two places is 12 km from the midpoint

Let 144 walk for X hours and meet 7x-5x = 12 * 2

The distance between the two places is 630 kilometers. A and B cars drive from the two places at the same time and meet each other in 7 hours. The speed ratio of a and B cars is 4:5. How many kilometers do a and B cars walk each hour?
The sooner you answer, the better. It's due tomorrow

A = 630 ／ 7 ／ (4 + 5) × 4 = 40 km
B = 40 △ 4 × 5 = 50 km