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serg [7]
3 years ago
12

Which equation is the equation of the line, in point-slope form, that has a slope of 1.9 and passes through the point (4.5, −1.4

) ?
A. y−4.5=−1.9(x+1.4)
B. y+1.4=1.9(x−4.5)
C. y−1.4=1.9(x−4.5)
D. y−4.5=1.9(x−1.4)
Mathematics
1 answer:
Vladimir [108]3 years ago
6 0
Format: y-y1 = m(x-x1)
Solution: B. y + 1.4 = 1.9(x - 4.5)
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Step-by-step explanation:

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From here, we can divide 128.80 by 28 to find what 1% of the price is then multiply the value by 100 to find 100%, or the original price.

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Using the speed - distance relationship, the time left before the appointed time is 27 minutes.

<u>Recall</u><u> </u><u>:</u>

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<u>At</u><u> </u><u>10mph</u><u> </u><u>:</u>

  • Distance = 10 × (t + 3) = 10t + 30 - - - (1)

<u>At</u><u> </u><u>12</u><u> </u><u>mph</u><u> </u><u>:</u>

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<em>Equate</em><em> </em><em>(</em><em>1</em><em>)</em><em> </em><em>and</em><em> </em><em>(</em><em>2</em><em>)</em><em> </em><em>:</em>

10t + 30 = 12t - 24

<em>Collect</em><em> </em><em>like</em><em> </em><em>terms</em><em> </em>

10t - 12t = - 24 - 30

-2t = - 54

<em>Divide</em><em> </em><em>both</em><em> </em><em>sides</em><em> </em><em>by</em><em> </em><em>-</em><em> </em><em>2</em>

t = 54 / 2

t = 27

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Learn more : brainly.com/question/25669152

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