50
Age - x
500 - 3x = 350
3x = 150
x=50
The answer is 35
Hope this helped heheh :)
Answer:
I cant see the picture it blocked for some reason probally my pc.
Step-by-step explanation:
37 minutes. he does 10m every 2 minutes until he does 180m for 36 minutes. then he does 20m for 1 minute bc the wave doesn't take him back. so it's 37 minutes
