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Triss [41]
3 years ago
7

Help with these problems please, DUE T O D A Y !!!! I’ll try to make you guys brainlist who ever answers first

Mathematics
1 answer:
Makovka662 [10]3 years ago
4 0

Answer:

19) n = -14

20) x = 4

21) b= -14

22) x = 2

23) x = -1

24) x = -9

Step-by-step explanation:

19) Use the distributive property to get rid of the parentheses. You will get:    20-4n = 76. So, n = -14.

20) Multiply both sides of the equation by 2 to get: -8 + x = -4. So, x = 4

21) Add 3 to both sides to get: \frac{b}{14} = -1. So, b = -14

22) Use the distributive property to get rid of the parentheses. You will get: -40 - 5x = -50. Then, add 40 to both sides to get: -5x = -10. So, x = 2.

23) Use the distributive property to get rid of the parentheses. You will get: -72 = -64 + 8x. Then, add 64 to both sides to get: -8 = 8x. So, x = -1

24) Add 2 to both sides to get: \frac{x}{3} = -3. So, x = -9

Hope this helps :)

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siniylev [52]

Answer:

Don't worry, there is no solution.

Step-by-step explanation:

If you end up with 0 equaling something that isntn0 when you're simply solving a variable, there is no solution. But if you get 0=0, it's all real numbers.

3 0
3 years ago
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Sveta_85 [38]

Given:

The expression is

9-3\div \dfrac{1}{3}+1

To find:

The value of given expression.

Solution:

We have,

9-3\div \dfrac{1}{3}+1

BODMAS : Bracket, Order, Division, Multiplication, Addition, and Subtraction.

Using BODMAS, first we need to perform division in the given expression.

=9-(3\div \dfrac{1}{3})+1

=9-(3\times 3)+1

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Now, apply addition.

=(9+1)-9

=10-9

Now, apply subtraction.

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3 0
3 years ago
A line is perpendicular to<br> y = - 1/4x-9<br> What is the slope of this<br> perpendicular line?
Kryger [21]

Answer:

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comparing with y = MX+ c

m=-1/4.

slope =-1/4

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Answer:

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Step-by-step explanation:

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