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Lerok [7]
3 years ago
7

3 & 4, And tell explanation (P.S: Sorry for my sloppy handwriting)

Mathematics
1 answer:
Kazeer [188]3 years ago
5 0
3) Altitude / Time = y2 - y1 / x2 - x1 = 30 - 60 / 6 - 3
 m = -30 / 3
 m = -10

In short, constant rate of change is y = -10x

b) Constant proportionality exists between two quantities, as the amount of changing in Altitude over fixed period of time is same (constant) for every instance. 

4) Sales / Day = y2-y1 / x2-x1 = 2,000 - 1,000 / 6 - 3
m = 1000 / 3
m = 333.3

a) In short, Constant relationship is y = 333.3x

b) Constant proportionality exists between two quantities, as the amount of changing in Sales over fixed days is same (constant) for every instance. 

Hope this helps!
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vodomira [7]

y= -5-x

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3 years ago
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sladkih [1.3K]
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Given:

The postal service charges $10.30 per pound on the package shipped to England.

To find:

The rate in dollars per ounce.

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We have, the postal service charges $10.30 per pound on the package shipped to England.

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