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4 years ago

What does -3x+2when x-5 equal

Mathematics

1 answer:

Tasya [4]4 years ago

6 0

Answer:7

Step-by-step explanation:

1.-3 x +2=6+1=7

it;'s only one step because it's simple math.

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Find the slope of the line y = 9/4x - 9/2

prisoha [69]

Answer:

Y=2

Step-by-step explanation:

9x - 4 y = 18

8 0

3 years ago

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Which point is 12 units less than point Q?

nadezda [96]

Answer:

Point R

Step-by-step explanation:

Go back 12 points

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3 years ago

What Is 3 Over 4 Plus 7 Over 8 Plus 5 Over 6 ? Please Help

sesenic [268]

First 3/4 = 18/24
7/8 = 21/24
5/6 = 20/24
18+21+20=59/24
Hope this helps too!

3 0

4 years ago

Write the equation of the line in slope-intercept form that has the following points: (2, -1)(5, -3)

kirza4 [7]

Answer:

$\large\boxed{y=-\dfrac{2}{3}x+\dfrac{1}{3}}$

Step-by-step explanation:

The skope-intercept form:

$y=mx+b$

m - slope

b - y-intercept

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (2, -1) and (5, -3). Substitute:

$m=\dfrac{-3-(-1)}{5-2}=\dfrac{-3+1}{3}=\dfrac{-2}{3}=-\dfrac{2}{3}$

We have the equation:

$y=-\dfrac{2}{3}x+b$

Put the coordinates of the point (2 , -1) to the equation:

$-1=-\dfrac{2}{3}(2)+b$

$-1=-\dfrac{4}{3}+b$ add 4/3 to both sides

$\dfrac{1}{3}=b\to b=\dfrac{1}{3}$

Finally we have:

$y=-\dfrac{2}{3}x+\dfrac{1}{3}$

6 0

3 years ago

Find the value of n -2(4 + 2n)= -20

Mamont248 [21]

Answer:

n= -3

-2(4+2n) = - 20

-8+4n = -20

4n = -20+8

4n = -12

divide both sides by 4

8 0

3 years ago