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juliaduenkelsbu
19.03.2021 •
Mathematics
Which equations have no solution? Check all that apply.
- [x] = 0
[x] =-15
- 1x1 = 12
-|- x] = 9
-|-x| = -2
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Ответ:
0
Step-by-step explanation:
Ответ:
they will meet after 3 hours.
Step-by-step explanation:
Let t represent the number of hours it will take them to meet.
A walker and a cyclist are 45 miles apart. If they move towards each other, in t hours, they would have covered a total of 45 miles
Distance = speed × time
They move towards each other with speeds of 5 mph and 10 mph respectively. It means that the distance covered by the walker in t hours is 5 × t = 5t
Also, the distance covered by the cyclist in t hours is 10 × t = 10t
Since the total distance covered us 45 miles, then
5t + 10t = 45
15t = 45
t = 45/15
t = 3 hours