You have to pay $4 rent today for your Apartment. X= the amount of money you have.
Answer:
2 km/h
Step-by-step explanation:
Let x represent the speed of the river current, t₁ be the time spent rowing against the current and t₂ be the time spent rowing with the current.
Since the speed of the still water = 20 km/h.
The speed of rowing against the current = (20 - x)
The speed of rowing with the current = (20 + x)
We know that velocity = distance / time. Hence time = distance / velocity
t₁ = 36 / (20 - x)
t₂ = 22 / (20 + x)
but t₁ + t₂ = 3 hours
Therefore:
3 = 36 / (20 - x) + 22 / (20 + x)
multiply through by 400 - x²
3(400 - x²) = 36(20 + x) + 22(20 - x)
1200 - 3x² = 720 + 36x + 440 - 22x
3x² + 14x -40 = 0
This gives x = -6.7 or x = 2
x cannot be negative therefore x = 2 km/h
The speed of the river current is 2 km/h
Which is 592/17 = 34.82 Rounding to the nearest tenth? Is 35.
Answer:
Hello, Your answer will be
part a: i got 15 outcomes
part b: 4/15, about 26.7%
part c: 1/15, about 6.67%
<em>Have a Great Day!</em>
1/16+ 1/12
= 3/48+ 4/48 (common denominator)
= 7/48
The final answer is 7/48~
