1 year ago

The length of a river is 480km. What is its length on a map with a scale 1 : 5,000,000?

Mathematics

1 answer:

sleet_krkn [62]1 year ago

3 0

Answer:

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Step-by-step explanation:

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A direct variation function contains the points (2, 14) and (4, 28). Which equation represents the function?

lara [203]

Answer:

$y=7x$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

we have the points (2,14) and (4,28)

Find out the constant of proportionality k

$k=y/x$

For (2,14) ----> $k=14/2=7$

For (4,28) ----> $k=28/4=7$

the value of $k=7$

therefore

The equation is

$y=7x$

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There is one solution

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