Answer:
Lucas hiked 17,200m after lunch.
Step-by-step explanation:
x = How far Lucas hiked after lunch.
Lucas hiked 14,300 meters in the morning.
x = 0
This because 14,300m was BEFORE lunch.
After lunch he continued hiking. When he finished the hike, he had covered 31.5 kilometers in all.
Total distance (31.5km) = x + 14300m
First, convert them to the same unit. 1km = 1000m. Multiply this by 31.5. 31.5km = 315000m
31500 = x + 14300
Rearrange to find x.
31500 - 14300 = x
17200 = x
Lucas hiked 17,200m after lunch.
