Answer: 7 miles/h and 1 miles/h
Step-by-step explanation:
With the speed of current = x + 1
Against the speed of current = x - 1
ATQ
4(x-1) = 3(x+1)
4x-4 = 3x+3
4x - 3x = 3+4
x = 7
Speed of boat = 7miles/h
Current of river = 1 miles/h
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Answer:
Hello,
Boat speed=7 miles/h
Current speed = 1 mile/h
I am going to try to explain.
Let say V the speed of the boot (V like vitesse in french)
Let say v the speed of the current.
distance=24 miles
Okay okay okay
r =
12 - = 5
6 × 12 × r × 6 - = 5 × 6
72r - r = 30
71r = 30
r = 30 ÷ 71
y = mx + b
-1 = 10(-2) + b
-1 = -20 + b
19 = b
y = -2x + 19
Hope this helps! ;)