Answer:
3.83cm
Step-by-step explanation:
first, convert the 300km you're given to cm, giving you 30,000,000 cm. Then take this number and divide the 2.3cm by it. You should get .000000077cm. Next, use this number as your ratio to find what 500km would be represented by in cmxkm on this map. Finally, using the unit conversion of 1km=100,000cm, convert our last answer to cm by canceling out your km unit, giving you your final answer of 3.83cm.