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aliina [53]
3 years ago
7

Use the coordinates of the plotted points to complete the calculation below. Pay attention to negative signs

Mathematics
2 answers:
Alex787 [66]3 years ago
4 0

answer:

-1/2

explanation

1-2 / 4-2 = -1/2

MAVERICK [17]3 years ago
3 0

Slope between two points

 (x_{1},y_{1}) \text{and},(x_{2},y_{2}) \text{is equal to}\\\\\text{and}=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{1-2}{4-2}\\\\=\frac{-1}{2}

Option D                                

  \frac{-1}{2}

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3 years ago
A DVD player is regularly priced at 79.95 and is on sale for 30% off. What is the discount?
evablogger [386]

Answer:

$2.40 or $77.55

Step-by-step explanation:

I don't know if you are asking for how much off or what, so I'm doing both

First, we have to find how much we have to take off or what is 30% of 79.95 so our equation is:

79.95 x 0.03 = 2.40

So 30% of 79.95 is $2.40

To find how much our new price sale is, we have to take that $2.40 off so our equation is:

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hope this helps:)

7 0
2 years ago
Diane made $286 for 13 hours of work,
lyudmila [28]

Answer:

8 hours

Step-by-step explanation:

286 divided by 13 is 22

so she's making 22 dollars an hour

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4 0
2 years ago
An Epson HR100 printer priced at $379 is sold for $319. What was the percent price reduction?
EastWind [94]

Answer:

The percent price reduction was 15.83%

Step-by-step explanation:

we know that

In this problem

$379 represent the 100%

so

using proportion

Find out what percentage represent the difference between the original price and the final price

\frac{\$379}{100\%}=\frac{\$379-\$319}{x}\\\\x=100(60)/379\\\\x=15.83\%

3 0
3 years ago
Georgia spent 150 minutes on her Maths homework last week.
vladimir2022 [97]

Answer:

last week = 150 minutes

this week = 162 minutes

changes = 162-150

= 12 minutes

percentage of changes = (12/150) × 100

= 8%

6 0
3 years ago
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