The probability that daddy will buy bread on his way home is 3/5 while the probability that mummy will buy bread home is 2/7 . find the probability that either mummy or daddy will by bread on their way home

I didn't get d question clearly but I hope this helps

Step-by-step explanation:

3/5+ 2/7 = 31/35

31/35 - 2/7 that's a possibility for mummy buying bread the answer is 21/35

and 31/35 - 3/5 probability of daddy buying bread is 10/35

31/35

Step-by-step explanation: when you add the two fractions together it will give you 31/35.

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m