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J = 90 x 5 menit
5 menit = 5/60 jam
J = 90 x 5 ÷ 60
J = 9 x 5 ÷ 6
J = 45 ÷ 6
J = 7,5 km
t=5 MENIT=5×60=300 s
dit :jarak (S)
jawab:
s=v×t
=90×300
=27.000