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Mathematics 16 Online
OpenStudy (horsegal244):

A proportional relationship between the number of pounds of cabbage (x) and the price in dollars (y) is graphed, and the ordered pair (5, 2) is on the graphed line. Part A: What is the price of 1 pound of cabbage? Show your work, including the proportion you used to determine the price. Part B: What does the ordered pair (10, 4) on the graph represent? Explain in words.

OpenStudy (horsegal244):

@Z4K4R1Y4

OpenStudy (z4k4r1y4):

you'll need to post the graph.

OpenStudy (horsegal244):

There is no graph....

OpenStudy (horsegal244):

@Z4K4R1Y4

OpenStudy (horsegal244):

@Michele_Laino @hartnn @Hero

OpenStudy (z4k4r1y4):

(5,2) means 5 pounds of cabbage costs $2. so to get 1 pound you divide the weight of cabbage by 5. then to get the price of 1 pound you divide the price by 5.

OpenStudy (horsegal244):

Ok I don't get it

OpenStudy (z4k4r1y4):

|dw:1432752532427:dw|

OpenStudy (horsegal244):

Can u just give me the answer

OpenStudy (horsegal244):

in essay form

OpenStudy (horsegal244):

Sorry but I'm horrible at math

OpenStudy (z4k4r1y4):

5 pounds divided by 5 = 1 pound. $2 divided by 5 = $0.4

OpenStudy (michele_laino):

we can write the subsequent proportion: \[\Large 2:5 = p:1\] p is the unit price

OpenStudy (horsegal244):

Im sorry i still don't get it

OpenStudy (michele_laino):

Hint: if 5 pounds of cabbage cost 2 dollars, then 1 pound of cabbage costs 2/5 dollars

OpenStudy (horsegal244):

ok

OpenStudy (michele_laino):

so we can write this formula: \[p = \frac{2}{5}\]

OpenStudy (horsegal244):

ok

OpenStudy (michele_laino):

now, if we apply the fundamental property to this proportion: \[2:5 = p:1\] we get: \[5p = 2\]

OpenStudy (horsegal244):

ok

OpenStudy (michele_laino):

next I divide both sides of that last formula, by 5, so I can write: |dw:1432753316992:dw|

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