She ran for 2 and a half hours
12.5/5=2.5
Tbh idk all I got was 51.496 I’m dumb i just want points ^_^
No if it it was 16.450 then it would be equal to 16.45
Answer:
About 5 hr 10 min
Step-by-step explanation:
rate 1 = 1 pool / 9 hrs rate 2 = 1 pool / 12 hours
now find the time with both rates combined
1 pool / ( 1/9 + 1/12) = 1/ (7/36) = 36/7 hr = 5 1/7 hr = 5 hr 8.6 min
