Jawapan

  • Pengguna Brainly
2016-01-06T01:02:04+08:00
4 breaths = 10 seconds 1 Breaths = 2.5 seconds = 2 minutes × 60 seconds = 120 seconds =120 seconds ÷ 2.5 seconds = 48 breaths
2016-01-06T03:58:43+08:00
4 breaths / 10 seconds

2 minutes
= 2 x 60 seconds
= 120 seconds

amount of breaths
= 4/10 x 120
= 48 breaths