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denis23 [38]
3 years ago
7

Find the slope of the line(s)

Mathematics
2 answers:
Mademuasel [1]3 years ago
8 0

Answer:

14. 2

15. -1

16. 0

Step-by-step explanation:

all work is pictured and shown

wolverine [178]3 years ago
7 0

Answer:

14) m=2

15) m=-1

16) m=0

Step-by-step explanation:

In order to calculate the slope of a line, we can use this formula:

m=\frac{y_2-y_1}{x_2-x_1}

The procedure is:

- Choose two points on line.

- Substitute the coordinates into the formula and evaluate.

Then:

14) Point (0,0) and Point (1,2):

Slope:  m=\frac{2-0}{1-0}=-2

15) Point (0,0) and Point (-2,2):

Slope:  m=\frac{0-2}{0-(-2)}=-1

16) Since it is an horizontal line, the slope is zero:

m=0

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-5/2a+ 5=25...............,....................................
sveta [45]

\text{Hey there!}

\mathsf{-\dfrac{5}{2}a+5=25}

\text{\bf{SUBTRACT}}\mathsf{\ by\ 5\ on\ your\ sides}\\\mathsf{-\dfrac{5}{2}a+5-5=25-5}\\\\\mathsf{Cancel\ out: 5-5\ because\ it\ gives\ you\ 0}\\\\\mathsf{Keep: 25 - 5\ because\ it\ helps\ us\ solve\ for\ a}\\\\\mathsf{25-5=20}\\\\\mathsf{New\ equation:- \dfrac{5}{2}a=20}

\text{\bf{MULTIPLY}}\mathsf{\  \dfrac{2}{-5}\ on\ your\ sides}\\\\\mathsf{\dfrac{2}{=5}\times\dfrac{-5}{2}a=\dfrac{2}{-5}\times20}\\\\\mathsf{Cancel\ out: \dfrac{2}{-5}\times\dfrac{-5}{2}\ because\ it\ gives\ you\ 1}\\\\\mathsf{Keep: \dfrac{2}{-5}\times20\ because\ it\ gives\ you\ the\ value\ of\ a}\\\\\mathsf{\dfrac{2}{-5}\times20=-8}

\boxed{\boxed{\boxed{\boxed{\mathsf{Thus\ your\ answer\boxed{\boxed{\mathsf{a=-8}}}}}}}}\checkmark

\large\text{Good luck on your assignment and enjoy your day!}

~\dfrac{\frak{LoveYourselfFirst}}{:)}

4 0
3 years ago
How many hours do they have to work before they go to the movies
lorasvet [3.4K]

Answer:

25 months

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So for A $70 a month would take 8 months to be at least $500

And for B it in those 8 months it would cost you $900

But we have to keep going up until they are equal

25*70 = 1750

(25*50) = 1250+500=1750

So yes 25 months is correct

7 0
3 years ago
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