Odpowiedź:
5km/h= 5km/60min
6km/h=6km/60min
5/60 ×x= 6/60×(x-4,5) /×60
5x=6(x-4.5)
5x=6x -27
5x-6x=-27
-1x=-27 /*-1
x=27 min
5/60×27=2.25km
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Odpowiedź:
5km/h= 5km/60min
6km/h=6km/60min
5/60 ×x= 6/60×(x-4,5) /×60
5x=6(x-4.5)
5x=6x -27
5x-6x=-27
-1x=-27 /*-1
x=27 min
5/60×27=2.25km