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2 years ago

Solve the equation for x: 3x+5=20

Mathematics

1 answer:

Lyrx [107]2 years ago

8 0

Answer:

x = 5

Step-by-step explanation:

3x+5=20

Subtract 5 from both sides.

3x=20−5

Subtract 5 from 20 to get 15.

3x=15

Divide both sides by 3.

x= 15/3

Divide 15 by 3 to get 5.

x=5

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Nat2105 [25]

Answer:

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Step-by-step explanation:

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$1 \ \ \ \ \ \ \ \ \ \ \ \ \ \ 1 \ \ \ \ \ \ \ \ \ \ \ \ \ \ 12\\\\ 1 \ \ \ \ \ \ \ \ \ \ \ \ \ \ 2 \ \ \ \ \ \ \ \ \ \ \ \ \ \ 6\\\\ 1 \ \ \ \ \ \ \ \ \ \ \ \ \ \ 3 \ \ \ \ \ \ \ \ \ \ \ \ \ \ 4\\\\2 \ \ \ \ \ \ \ \ \ \ \ \ \ \ 2 \ \ \ \ \ \ \ \ \ \ \ \ \ \ 3\\\\$

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2 years ago

Read 2 more answers

Find the distance between each pair of points <br>L(-7,0) ,Y(5,9)

Sedbober [7]

Answer: The distance is 15

Step-by-step explanation:

To find the distance between L and Y find the difference in the x and y coordinates then square them and add them to find their square root.

-7-5= -12

0-9 = -9

12^2 + 9^2 = d^2 where d is the distance

144 + 81 = d^2

225 = d^2

d= $\sqrt{225}$

d= 15

3 0

3 years ago

Please help!!! (With one or all the problems, anything is greatly appreciated if you understand probability)

professor190 [17]

Here are the answers to problem 1..

a) 11

b) 5/36

c) 25 Times because 7 has a probability of 16.667%

d) 25 Times because 10, 11, and 12 have a probability sum of 16.667% ironically...

Hope this helps. :)

6 0

3 years ago

Which is an equation of a line through (7,1) and perpendicular to y=-x+3

zysi [14]

Answer:

The answer is y=-1x+8 or you can write it this way y=-x+8 either way will work fine.

Step-by-step explanation:

y=mx+b

m=-1

y-y=m(x-x¹)

y-1=-1(x-7)

y-1=-1x+7

+1 +1

y=-x+8

I hope this helps:)

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2 years ago

V = (pi r^2 h/3)...solve for h

guapka [62]

Answer:

h = (3×V)/ (pi×r²)

Step-by-step explanation:

$v = \frac{\pi {r}^{2} h}{3}$

$3 \times v = \pi {r}^{2} h$

$h = \frac{3v}{\pi {r}^{2} }$

4 0

3 years ago