I think it takes her brother 30 minutes to complete his homework.
Because 3/5 of an hour is 36/60
5/6 = 30/36
Hope this helps! :)
Answer:
Speed = 20 m/s
Step-by-step explanation:
The formula to find the speed of a wave is found by
Speed = Wavelength x Frequency where the frequency is in HZ and the wavelength is in meters
Speed = .80*25
Speed = 20 m/s
Answer:
54
Step-by-step explanation: