Answer:
2
Step-by-step explanation:
Currently, Peter has run a total distance of [tex]400\cdot 23 =9200\:\text{m}[/tex]. His goal is 10 km, as stated in the problem, which equates to 10,000 meters. Thus he will need to run [tex]10,000-9,200=800[/tex] more meters to achieve his goal. Since the track is 400 meters, he needs to run around the track [tex]\frac{800}{400}=\boxed{2}[/tex] more times to achieve his goal.
