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Gnesinka [82]
3 years ago
5

What is an equation for the line that passes through (-2,-3) with a slope of -1/2?

Mathematics
1 answer:
Crazy boy [7]3 years ago
8 0

Answer:

C

Step-by-step explanation:

To write the equation of a line use the point slope form of a line substituting m = -1/2 and the point (-2,-3).

y -y_1 = m(x-x_1)\\y --3=-\frac{1}{2}(x--2)\\y+3 = -\frac{1}{2}(x+2)

Convert to standard form by applying the distributive property and rearranging the terms.

y + 3 = -\frac{1}{2}(x+2)\\y+3 = -\frac{1}{2}x -1\\2y + 6 = -x -2\\x+2y + 6 = -2\\x + 2y = -8

The equation x +2y = -8 is the same equation as 4y + 2x = -16 just doubled----> 2x + 4y = -16

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a sandwich shop has 60 stores and 70 percent of the stores are I California. How many stores are in California and Nevada
Aliun [14]

Answer:

The number of stores in California 42

The number of stores in Nevada 18

Step-by-step explanation:

Given as :

The total sandwich shop in California and Nevada = 60

The percentage of shop in California = 70%

So, The percentage of shop in Nevada = 100% - 70% = 30%

Let The number of stores in California = c

And The number of stores in Nevada = n

Now, According to question

The number of stores in California = 70% of the total number of shops

I.e c = \frac{70}{100} ×  total number of shops

Or, c =  \frac{70}{100} × 60

∴   c = \frac{70\times 60}{100}

or, c =   \frac{4200}{100}

or, c = 42

So, The number of stores in California = c =42

Again

The number of stores in Nevada = 30% of the total number of shops

I.e n = \frac{30}{100} ×  total number of shops

Or, n =  \frac{30}{100} × 60

∴   n = \frac{30\times 60}{100}

or, n =   \frac{1800}{100}

or, n = 18

So, The number of stores in Nevada = n = 18

Hence The number of stores in California 42

And The number of stores in Nevada 18   Answer

8 0
3 years ago
Which expression is not a polynomial
polet [3.4K]
4-x I know this because my teacher just went over this problem
6 0
3 years ago
How do you write 2/10 as a percentage
slava [35]
It’s 20% because 10/10 would be 100% and 1/10 would be 10%
4 0
3 years ago
7.4 Centimeters to kilometers
Ket [755]

Answer:

.00074 km

Step-by-step explanation:

7.4 cm  *  1 m    *  1km   =7.4/100/100=.00074

            100 cm    100m

7 0
3 years ago
Write an addition problem that is modeled by the following number line :
rewona [7]

Answer:

-10+15

Step-by-step explanation:

Pls Brainliest! ;) It would mean a lot! Also this is called integers addition on a line plot.

3 0
3 years ago
Read 2 more answers
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