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Wewaii [24]
3 years ago
14

30-3n = 10n = what?​

Mathematics
2 answers:
hram777 [196]3 years ago
7 0

Answer:-20/3

Step-by-step explanation:

30-3n=10

Subtract both sides by 30

-3n=-20

Divide both sides by -3

n = -20/3

max2010maxim [7]3 years ago
4 0

Answer:

n = 20/3

Step-by-step explanation:

30 = 3n + 10

20 = 3n

n = 20/3

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Write an equation in slope-intercept form that has m = 5/4 through (-4,-3)
timama [110]

Answer:

y=5/4x + 2

Step-by-step explanation:

Ok so in the point (-4,-3) -4 is x and -3 is y. Now, since you have the slope, 5/4, you can put it into an equation. -3= 5/4(-4) + b. When you multiply 5/4 x -4 you get -3=-5 + b so then add 5 to both sides to get rid of it and you have 2=b. And your equation would be y=5/4x + 2

4 0
3 years ago
Bob bought a new book and paid $2.10 tax on the book. If the tax rate was 7 ½%, what was the cost of the book?
scoray [572]
$15.75
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3 years ago
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4 0
3 years ago
Someone please help me out I rlly need help
Anit [1.1K]

The equation that could be used to solve for x is (3x-1) = 140 and the value of x is 47°.

According to the question,

We have the following information:

We have two lines that are intersecting each other at a point. The angles made on this point are given.

Now, we know that these two angles are vertically opposite angles. And we also know that vertically opposite angles are equal.

So, we will have the following equation:

3x-1 = 140

Now, we can easily find the value of x from this equation:

Adding 1 on both sides of the equation:

3x = 140+1

3x = 141

Dividing by 3 on both sides:

x = 141/3

x = 47°

Hence, the equation that could be used to solve for x is (3x-1) = 140 and the value of x is 47°.

To know more about equation here

brainly.com/question/18067015

#SPJ1

5 0
1 year ago
Which quadrants are (-4,5) in
zaharov [31]

Answer:

Quadrant 2

Step-by-step explanation:

Take a look at the picture I added it should help you on futures questions like this :)

4 0
3 years ago
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