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3 years ago

Drawn the graph of y=6-2x on the grid

Mathematics

1 answer:

xenn [34]3 years ago

3 0

Answer:

Please check attachment

Step-by-step explanation:

Here, we want to plot the graph of y = 6-2x on the grid

We can rewrite this to look like the general form as;

y = -2x + 6

The y-intercept is 6

This point is (0,6)

For the x-intercept, equate y to 0

0 = -2x + 6

2x = 6

x = 6/2

x = 3

The x-intercept is (3,0)

So we have to join the point (3,0) with (0,6)

Please check the attachment for the plot of this on the grid

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It takes 32 hours for a motorboat moving downriver to get from pier A to pier B. The return journey takes 48 hours. How long doe

lina2011 [118]

Answer:

Time taken by the un powered raft to cover this distance is T = 192.12 hr

Step-by-step explanation:

Let speed of boat = u $\frac{km}{hr}$

Speed of current = v $\frac{km}{hr}$

Let distance between A & B = 100 km

Time taken in downstream = 32 hours

$32 = \frac{100}{u +v}$

$u + v = \frac{100}{32}$

u + v = 3.125 ------ (1)

Time taken in upstream = 48 hours

$48 = \frac{100}{u -v}$

$u -v = \frac{100}{48}$

u - v = 2.084 ------- (2)

By solving equation (1) & (2)

u = 2.6045 $\frac{km}{hr}$

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Now the time taken by the un powered raft to cover this distance

$T = \frac{100}{v}$

Because un powered raft travel with the speed of the current.

$T = \frac{100}{0.5205}$

T = 192.12 hr

Therefore the time taken by the un powered raft to cover this distance is

T = 192.12 hr

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3 years ago

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Step-by-step explanation:

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