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3 years ago

What would be a equation for (5,2) and (0,7)?

1 answer:

6 0

$\bf (\stackrel{x_1}{5}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{0}~,~\stackrel{y_2}{7}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{7}-\stackrel{y1}{2}}}{\underset{run} {\underset{x_2}{0}-\underset{x_1}{5}}}\implies \cfrac{5}{-5}\implies -1 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{2}=\stackrel{m}{-1}(x-\stackrel{x_1}{5}) \\\\\\ y-2=-x+5\implies y = -x+7$

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Directions: Calculate the percent increase or decrease between the starting and ending

Sveta_85 [38]

I'll do the first two to get you started

===============================================

Problem 1

A = 3 = starting value

B = 10 = ending value

C = percent change

C = [ (B - A)/A ] * 100%

C = [ (10-3)/3 ] * 100%

C = (7/3) * 100%

C = 2.3333333 * 100%

C = 233.33333%

C = 233.3%

The positive C value means we have a percent increase. If C was negative, then we'd have a percent decrease.

<h3>Answer: 233.3% increase</h3>

===============================================

Problem 2

A = 9 = start value

B = 20 = end value

C = percent change

C = [ (B - A)/A ] * 100%

C = [ (20-9)/9 ] * 100%

C = (11/9)*100%

C = 1.2222222222*100%

C = 122.22222222%

C = 122.2%

<h3>Answer: 122.2% increase</h3>

7 0

3 years ago

Read 2 more answers

X-3/4 = 2x-9/7<br><br> Please answer it I’ll mark your answer as BRAINLIEST

lidiya [134]

<h3><u>Answer</u> :</h3>

$:\implies\sf\:x-\dfrac{3}{4}=2x-\dfrac{9}{7}$

$:\implies\sf\:\dfrac{9}{7}-\dfrac{3}{4}=2x-x$

$:\implies\sf\:\dfrac{36-21}{28}=x$

$:\implies\boxed{\bf{\red{x=\dfrac{15}{28}}}}$

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3 years ago

Read 2 more answers

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ludmilkaskok [199]

Answer:

Step-by-step explanation:

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2 years ago

How much will the taxi driver earn if he takes one passenger 4.8 miles in another passenger 7.3 miles explain your process

Tcecarenko [31]

Answer:

12.1x+t

Step-by-step explanation:

since we do not get a specific amount we must add 4.8 and 7.3 and substitute the amount the driver earns per mile with x and use t as a variable if they charge something like $5 just to get in before driving

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2 years ago

Leo wants to paint a mural that covers a wall of an area of 600 square feet. The height of the wall is 2/3 of its lengtht. What

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Length is 30 feet and height is 20 feet.

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