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2 years ago

Solve the system by graphing... 2x-y= -5 x-y=0

Mathematics

1 answer:

kvasek [131]2 years ago

3 0

2x-y= -5

x-y=0 ....> x = y

Substitute x = y into 2x-y= -5

2x - x= -5

x = -5

x = y = -5

Answer

(-5 , -5)

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Let s be the speed of boat in still water

Let d be the distance

Upstream speed = s-4

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So, Distance traveled in upstream = $Speed \times time =(s-4) \times \frac{30}{60}$

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