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DedPeter [7]
2 years ago
8

Justify your reasoning when solving the equation: 3(x+4)=8x-18

Mathematics
1 answer:
vampirchik [111]2 years ago
3 0

Answer:

6

Step-by-step explanation:

3x plus 12= 8x -18

subtract twelve on both sides:

3x= 8x- 30

minus 8x on both sides:

-5= -30

divide:6

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Find the quadratic function ..<br><br> 3x2 - y2 = 9<br><br> x2 + 2y2 = 38
ruslelena [56]

Answer:

Step-by-step explanation:

3x2 - y2 = 9.........(1)

x2 + 2y2 = 38......(2)

Let x^2 = a and y^2 = b

:- the two equations becomes

3a - b = 9..........(3)

a + 2b = 38.......(4)

Multiplying (4) by 3

3a + 6b = 114........(5)

Substracting (3) from (5)

3a - 3a + 6b - (-b) = 114 - 9

6b +b = 105

7b = 105

b = 105/7

b = 15

And 3a - b = 9 putting b = 15

3a - 15 = 9

3a = 15+9

3a = 24

a = 24/3

a = 8

And

x^2 = a

x^2 = 8

x = √8

x = √(4×2)

x = 2√2

Also y^2 = b

y^2 = 15

y = √15

6 0
3 years ago
Help with this ..............
seropon [69]

Answer:

the answer is D. 5.6

Step-by-step explanation:

EVERYONE LISTEN!!!! PLEASE COPY THIS MESSAGE AND RESEND!!!!

If you know youdeservetodie (that is his brainly username) then report him please, he is sending hurtful comments and threatening my friends. Please all I need you to do is get this message out there, copy this message and tell everyone you know, This bully needs to be stopped!!

8 0
2 years ago
Read 2 more answers
Anyone know the answer ?!? Let me know please !!!
Andru [333]

Answer:

25/35 = .71 = 71%

Step-by-step explanation:

3 0
2 years ago
What will be the firm's quick ratio after Nelson has raised the maximum amount of short-term funds? Do not round intermediate ca
Marysya12 [62]

Based on the short-term debt that Nelson raises, the firm's quick ratio will be 1.204.

<h3>What is the firm's quick ratio?</h3><h3 />

First, find the maximum amount of short-term funds that Nelson can raise?

Assuming this amount is x, we can find it with the current ratio formula:

Current ratio = Current assets / Current liabilities

2 = (1,260,000 + x) / ( 450,000 + x)

x = $360,000

The quick ratio would therefore be:

= ( New Current assets - New inventory) / New current liabilities

= ( (1,260,000 + 360,000) - (285,000 + 360,000) ) / (450,000 + 360,000)

= 1.204

Find out more on quick ratio at brainly.com/question/13917900.

#SPJ1

5 0
2 years ago
Can someone help me
barxatty [35]

Answer:

y= (-6/5)x -2

Step-by-step explanation:

y=mx+b , where m is the slope, and b is the y -intercept

the y -intercept is where the line intersects the y-axis so b = -2

the slope m= y(rise) /x(run)  = 6/-5 = -6/5 ( to find the slope you have to know how to get from any point on the line to another point on the same line; start at point (0,-2) go up 6(y-rise) and to the left 5(x-run) at point (-5,4))

y= (-6/5)x -2

4 0
2 years ago
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