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2 years ago

6

A t-shirt increased in price by

1 answer:

Katyanochek1 [597]2 years ago

8 0

Answer:

16

Step-by-step explanation:

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svet-max [94.6K]

The answer is 1/3(6x-9)=x-5

One solution was found :

                   x = -2

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                     1/3*(6*x-9)-(x-5)=0

Step by step solution :

Step  1  :

1 Simplify — 3

Equation at the end of step  1  :

1 (— • (6x - 9)) - (x - 5) = 0 3

Step  2  :

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :

   6x - 9  =   3 • (2x - 3)

Equation at the end of step  3  :

(2x - 3) - (x - 5) = 0

Step  4  :

Equation at the end of step  4  :

x + 2 = 0

Step  5  :

Solving a Single Variable Equation :

5.1      Solve  :    x+2 = 0

Subtract  2 from both sides of the equation :
                      x = -2

One solution was found :

                   x = -2

5 0

2 years ago

Please help meeeeeee

My name is Ann [436]

Answer:

y = 32.0°

Step-by-step explanation:

Using the sine ratio in the right triangle

siny° = $\frac{opposite}{hypotenuse}$ = $\frac{9}{17}$ , hence

y = $sin^{-1}$ ( $\frac{9}{17}$ ) ≈ 32.0°

6 0

2 years ago

Which of the following shows the extraneous solution to the logarithmic equation below?

zepelin [54]

Answer:

A) $x=-6$

Step-by-step explanation:

$2\log_5 (x+1)=2$

We can use logarithm properties to write it as:

$\log_5 (x+1)^2=2$

On removing $log$ it gives:

$(x+1)^2=5^2$

Taking square root both sides.

$\sqrt{(x+1)^2}=\sqrt{5^2}$

$(x+1)=\pm 5$

Solving for $x$ we get:

$x+1=5$ and $x+1=-5$

Subtracting by 1 to both sides of both the above equations.

$x+1-1=5-1$ and $x+1-1=-5-1$

$x=4$ and $x=-6$

So we have got two solutions for the logarithmic equation.

Now we check the validity of the solutions by plugging values in the equation $2\log_5 (x+1)=2$

Plugging $x=4$

$2\log_5 (4+1)=2$

$2\log_5 5=2$

$2(1)=2$ [As $log_5 5=1$ ]

$2=2$

So, thats a valid solution.

Plugging $x=-6$

$2\log_5 (-6+1)=2$

$2\log_5 (-5)=2$

As $\log_5 (-5)$ is undefined, so $x=-6$ is not a valid solution which means its extraneous.

8 0

2 years ago

Read 2 more answers

the temperature in london is -5 at midnight at midday the temperature is 10c how much did the tempeture increase by?

Murljashka [212]

Answer:

the temperature increased 1.25°c per hour

In those twelve hours the total increase was 15°c

Step-by-step explanation:

Divide the total temperature increase and the total of hours

$15 \div 12 = 1.25$

and that's how you get how many degrees it increased each hour from midnight to midday

5 0

2 years ago

Select all the equations that are equivalent to this equation.

guajiro [1.7K]

I think it’s 1, 4, and 5
Hope this helps <3

8 0

2 years ago