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4 years ago

-4 = r/20 - 5 solve for the variable

Mathematics

1 answer:

aniked [119]4 years ago

6 0

Hey there! :)

Answer:

r = 20.

Step-by-step explanation:

Given:

-4 = r/20 - 5

Begin by adding 5 to both sides:

-4 + 5 = r/20 - 5 + 5

1 = r/20

Multiply both sides by 20:

1 · 20 = r/20 · 20

r = 20.

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Pavel [41]

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3 years ago

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weqwewe [10]

Answer:

A.) Y= 8
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Step-by-step explanation:

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2 years ago

Which is the equation of the given line? (-10,-7) (3,-7)

Vladimir [108]

Answer: $y=-7$

Step-by-step explanation:

The equation of the line in Slope-intercept form is:

$y=mx+b$

Where "m" is the slope of the line and "b" is the y-intercept.

Find the slope with this formula:

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

Given the points (-10,-7) (3,-7), substitute values into the formula. Then:

$m=\frac{-7-(-7)}{-10-3}\\\\m=\frac{0}{-13}\\\\m=0$

Substitute the slope and any point into $y=mx+b$ and solve for "b":

$-7=0x+b\\b=-7$

Then, substituting "m" and "b" into the equation $y=mx+b$ , you get that the equation of this line is:

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4 0

3 years ago

Solve the system of equations algebraically.<br><br> {Y=(x-2)^2+2<br> {Y+4=3x

nikdorinn [45]

Answer:

(5, 11) and (2, 2)

Step-by-step explanation:

y = (x-2)² + 2

y + 4 = 3x

(x-2)² + 2 + 4 = 3x

x² - 4x + 4 + 6 = 3x

x² - 7x + 10 = 0

(x - 5)(x - 2) = 0

x - 5 = 0, x = 5

x - 2 = 0, x = 2

y = (5-2)² + 2 = 11

(5, 11)

y = (2-2)² + 2 = 2

(2, 2)

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4 years ago

Read 2 more answers

I’ll give brainliest

mylen [45]

I’m not sure if this answer.

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3 years ago