SOMEONE PLEASE HELP MEE

Mathematics

1 answer:

melomori [17]3 years ago

6 0

Answer:

The missing numbers are 12 and 39 respectively

Step-by-step explanation:

From the table, we can see that the ratio of the left column to the right is 3/5

So at any point in time, the values on a particular row of the table must conform

to this ratio

In other light, we have to multiply what we have on the left by 5/3 to get what’s on the right

and we have to multiply what we have on the right by 3/5 to get what’s on the left

We have this as follows;

20 * 3/5 = 12

and;

65 * 3/5 = 39

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3 years ago

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The minimum distance will be along a perpendicular line to the river that passes through the point (7,5)

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y=-4x/3+12/3

So a line perpendicular to the bank will be:

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5=3(7)/4+b

5=21/4+b

20/4-21/4=b

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So now we want to know the point where this perpendicular line meets with the river bank. When it does y=y so we can say:

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So now that we know the point on the river that is closest to Avery we can calculate his distance from that point...

d^2=(x2-x1)^2+(y2-y1)^2

d^2=(7-2.04)^2+(5-1.28)^2

d^2=38.44

d=√38.44

d=6.2 units

Since he can run at 10 uph...

t=d/v

t=6.2/10

t=0.62 hours (37 min 12 sec)

So it will take him 0.62 hours or 37 minutes and 12 seconds for him to reach the river.

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