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Murrr4er [49]
3 years ago
5

What characteristics of a graph tell you that it represents a proportional relationship ?

Mathematics
1 answer:
Alexeev081 [22]3 years ago
3 0

Answer:

if they are both equeal

Step-by-step explanation:

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Did I do this correctly?
butalik [34]

6/x= -2/18

Cross multiply. ( Multiply the numerators together ) . ( Multiply the denominators together (.

6*18= - 2*x

108= -2x

Divide by -2 for 108 and -2x

108/-2= -2x/2

x= -54

Answer: x= -54

6 0
3 years ago
At a local store, Kelly and Martin bought some notebooks and pencils. Kelly bought 4 notebooks and 25 pencils for 16.71. Martin
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Answer:

9.17

Step-by-step explanation:


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What is the unit price for a piece of cheese if 3.25 pounds costs $19.50?
Stolb23 [73]

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$6

Step-by-step explanation:

divide 19.50 by 3.25

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2 years ago
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HDTV screens usually have a width-to-heigh ratio of 16:9. Which screen dimensions are in the same proportion?
Lana71 [14]

Answer:

4: 3

Step-by-step explanation:

In this case, we have that there is a relationship between width and height, which is 16: 9, which means that any screen that has the same ratio would be an identical screen.

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If we raise to a power, it would give very large dimensions for an HDTV, therefore, it is best to remove the square root on both sides, since it has more common values for a TV.

\sqrt{16} :\sqrt{9}

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Therefore, a 4: 3 screen is a good choice for an HDTV with the same ratio.

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