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sladkih [1.3K]
3 years ago
8

If 15 pen cost $3.90, which equation would help determine the cost of 6 pens?

Mathematics
1 answer:
madreJ [45]3 years ago
8 0

Answer

1.56

Step-by-step explanation:

You must find the unit rate. To do so, you must divide 3.90 by 15. That will give you 0.26. After, times 6 and .26 to get your answer. Hope this helps.

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Answer:

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earnstyle [38]

Answer:

any coordinate outside the parabola is a reasonable answer.

Step-by-step explanation:

test the solution (0, 0) and if if that number is greater than 0 then the rest of the points outside on the inside are.

x = 0

y = 0

(0)^2 - 2(0) - 3 = -3

-3 is less than 0 so (0, 0) is not a possibility so any coordinate outside the parabola is a reasonable answer.

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3 years ago
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Answer:

-3

Step-by-step explanation:

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The slope is -3 and the y intercept is 0

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