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Kobotan [32]
3 years ago
15

What is -2+6y=18 3y=15 ?

Mathematics
2 answers:
pashok25 [27]3 years ago
7 0
\left \{ {{-2+6y=18} \atop {3y=15}} \right.  \\ +2+2 \left \{ {{6y=20} \atop {3y=15}} \right. \\ /3/3 \left \{ {{6y=20} \atop {y=5}} \right.\\  /6/6 \left \{ {{y=3 \frac{1}{3} } \atop {y=5}} \right.
gavmur [86]3 years ago
6 0
-2+6y=18\ \ \  |add\ 2\ to\ both\ sides\\6y=20\ \ \ \ \ |divide\ both\ sides\ by\ 6\\y=\frac{20}{6}\\\\\boxed{y=\frac{10}{3}}\\---------------------\\\\3y=15\ \ \ \ \ |divide\ both\ sides\ by\ 3\\\\\boxed{y=5}
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Select ALL the correct answers.
SCORPION-xisa [38]

Expression A decays at a rate of 5% every three months, while Expression B grows at a rate of 12% every four months  and  Expression A has an initial value of 624, while expression B has an initial value of 725 , Option B and E are the correct statements.

<h3>What is an Expression ?</h3>

It is a mathematical statement tat consists of variables , constants and mathematical operators.

It is given that

The company's records show the sales of short boards decrease every three months as represented by expression A, where t is the number of years that the boards have been for sale.

The company's records show that the sales of long boards increase every four months as represented by expression B, where t is the number of years that the boards have been for sale.

\rm Expression\; A = 624(0.95)^{4t}\\\\Expression \; B = 725(1.12)^{3t}

From observing both the expression the initial value is when t = 0

when t = 0,

A = 624

B = 725

and so Expression A decays at a rate of 5% every three months, while expression B grows at a rate of 12% every four months  and  Expression A has an initial value of 624, while expression B has an initial value of 725 , Option B and E are the correct statements.

To know more about Expression

brainly.com/question/14083225

#SPJ1

7 0
2 years ago
(2x + 3)3<br> I need help please
AysviL [449]
All u need to do is distribute the 3
(2x+3)3
6x+9
then u can’t do anything else because these terms are not the same and u can’t combine them. hope this helps :)
4 0
3 years ago
Read 2 more answers
Solve the equation for the specified variable.<br> T= BA-9, for B<br> What does b=
NARA [144]

9514 1404 393

Answer:

  B=\dfrac{T+9}{A}

Step-by-step explanation:

Add 9 to both sides of the equation, and divide by the coefficient of B.

  T = BA -9

  T +9 = BA

  (T +9)/A = B

We can rewrite that with B on the left:

  B = (T +9)/A

4 0
3 years ago
Which function below has the lowest y intercept? f(x) graph going through (0, 5) and (2, 1) g(x) Kyle started the summer having
mr Goodwill [35]
First find the slope of f(x).

m=(y2-y1)/(x2-x1)

m=(1-5)/(2-0)

m=-4/2

m=-2

y=-2x+b, using (2,1) we can solve for the y-intercept, "b"

1=-2(2)+b

1=-4+b

5=b

y=-2x+5

So f(x) has a y-intercept of 5

g(x)=6m+3

So g(x) has a y-intercept of 3

h(x)=3x+4

So h(x) has a y-intercept of 4


Then g(x) has the lowest y-intercept of just 3.
6 0
3 years ago
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Plzzzzzzzzzzz help ​
stealth61 [152]

Answer:

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Step-by-step explanation:

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