Mike said he is thinking of a number. If you divide Mike's number by 4, the result is 20. What number was Mike thinking of? Use (n) to represent Mike's number.​

4x20= n

n= 80

n = 80

Step-by-step explanation:

n ÷ 4 = 20

n = 4 × 20

n = 80

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

it has the same slope and a different y-intercept

hope this : )