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3 years ago

Howww???? Answer??????

Mathematics

2 answers:

Yuliya22 [10]3 years ago

8 0

Answer:

x = 13

Step-by-step explanation:

3x+8 = 2x+21

Subtract 2x from both sides

x + 8 = 21

Subtract 8 from both sides

x = 13

horrorfan [7]3 years ago

8 0

Answer:

x=29

Step-by-step explanation:

you add the numbers that dont have x

you then subtract 2x from 3x and you get your answer

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What is vaule of y when x=4'5

Degger [83]

Answer:

$y = 2.096$ or $y = \frac{2\sqrt5+6}{5}}$

Step-by-step explanation:

Given

$y = \frac{4}{x} + \sqrt x + 0.2 - 5x$

$x = \frac{4}{5}$

Required

Find y

$y = \frac{4}{x} + \sqrt x + 0.2 - 5x$

Substitute $x = \frac{4}{5}$

$y = \frac{4}{4/5} + \sqrt{4/5} + 0.2 - 5 * 4/5$

$y = 5 + \sqrt{4/5} + 0.2 - 4$

Collect like terms

$y = \sqrt{4/5} + 5 + 0.2 - 4$

$y = \sqrt{\frac{4}{5}} + 1.2$

Split the surd

$y = \frac{\sqrt4}{\sqrt5}} + 1.2$

$y = \frac{2}{\sqrt5}} + 1.2$

Rationalize

$y = \frac{2\sqrt5}{\sqrt5*\sqrt5}} + 1.2$

$y = \frac{2\sqrt5}{5}} + 1.2$

Take LCM and add

$y = \frac{2\sqrt5+1.2*5}{5}}$

$y = \frac{2\sqrt5+6}{5}}$

or solve as:

$y = \frac{2*2.24+6}{5}}$

$y = \frac{10.48}{5}$

$y = 2.096$

7 0

3 years ago

2.4.6.8. 10.... geometrical,arithmetic or neither?

poizon [28]

Answer:

This is an arithmetic sequence.

Step-by-step explanation:

The difference between the consecutive terms is constant => sequence is arithmetic.

4-2 = 2

6-4= 2

8-6 = 2

10-8 = 2

7 0

4 years ago

Read 2 more answers

Which of the following are the factors of m2 – 14m + 48?

qwelly [4]

The answer is D. (m-6)(m-8) hope this helped!

7 0

4 years ago

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X - 2y = 2 3x + 3y = 24

Alona [7]

Answer : yes

Explanation yes

6 0

3 years ago

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Matt tossed a coin 30 times. The results were 12 heads and 18 tails. What is the experimental probability of tossing heads?

ahrayia [7]

Answer:

25%

Step-by-step explanation:

You can't determine what it is going to land on but this is the answer!

Ps.Im not completely sure no hate please :)

4 0

3 years ago