On Martin's first stroke, his golf ball traveled \dfrac45 5 4 start fraction, 4, divided by, 5, end fraction of the distance to the hole. On his second stroke, the ball traveled 797979 meters and went into the hole. How many kilometers from the hole was Martin when he started?

0.395 km

Step-by-step explanation:

Let Martin distance from the hole be X

On first stroke, his golf ball traveled 4/5 of the distance to the hole. That is 4/5 X

On his second stroke, the ball traveled 79 meters and went into the hole

Total distance covered will be

X = 79 + 4/5X

X - 4/5X = 79

X - 0.8X = 79

0.2X = 79

X = 79/0.2 = 395 meters

How many kilometers from the hole was Martin when he started

X = 395/1000 = 0.395 km