Dylan5857
26.12.2020 •
Mathematics
A train covers the distance between two cities A and B at 70km/h during certain time. If it goes 10km/h faster, it will cover the same distance in one hour less. Find the distance between the two cities and the time it takes to do the first trip
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Ответ:
distance between 2 cities is 490km
time taken for first trip is 7 hours
Step-by-step explanation:
speed. time
70 x
10. 1
= 10x =70*1
x=70/10
=7 hours
distance= speed*time
=70*7
=490km
Ответ:
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Step-by-step explanation: