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3 years ago

10x = 2x -8 what is this answer

Mathematics

2 answers:

julia-pushkina [17]3 years ago

8 0

Answer:

x=-1

Step-by-step explanation:

pshichka [43]3 years ago

7 0

Answer:

10x = 2x -8

-2x -2x

8x = -8

divide by 8

x = -1

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"If you like rock-n-roll, then you like loud music." What is the converse of this statement?

Jobisdone [24]

Answer:

"If you like loud music, then you like rock-n-roll"

Step-by-step explanation:

we know that

To form the converse of the conditional statement, interchange the hypothesis and the conclusion

In this problem we have

"If you like rock-n-roll, then you like loud music."

The hypothesis is "you like rock-n-roll"

The conclusion is "you like loud music"

interchange the hypothesis and the conclusion

The converse is

"If you like loud music, then you like rock-n-roll"

5 0

3 years ago

Jessica gets her favorite shade of purple paint by mixing 2 cups of blue paint and 3 cups of red paint

Pie

Ok but what’s the question

7 0

3 years ago

Read 2 more answers

Q6: 24 students in a class took an algebra test.

german

Answer:

25%

Step-by-step explanation:

18/24 passed that reduces 3/4.

So 1/4 didn't pass

4 0

3 years ago

What is the sum of 20x^2-10x-30

ivann1987 [24]

Answer:

The sum of the roots is 0.5

Step-by-step explanation:

The correct question is

What is the sum of the roots of 20x^2-10x-30

we know that

In a quadratic equation of the form

$ax^{2} +bx+c=0$

The sum of the roots is equal to

$-\frac{b} {a}$

in this problem we have

$20x^{2} -10x-30=0$

$a=20\\b=-10\\c=-30$

substitute

$-\frac{(-10)} {20}=0.5$

Verify

Find the roots of the quadratic equation

The formula to solve a quadratic equation is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

$a=20\\b=-10\\c=-30$

substitute

$x=\frac{-(-10)\pm\sqrt{-10^{2}-4(20)(-30)}} {2(20)}$

$x=\frac{10\pm\sqrt{2,500}} {40}$

$x=\frac{10\pm50} {40}$

$x=\frac{10+50} {40}=1.5$

$x=\frac{10-50} {40}=-1$

The roots are x=-1 and x=1.5

The sum of the roots are

$-1+1.5=0.5$ ----> is ok

5 0

3 years ago

Sweet t purchased a new pair of jeans to wear at the battle of the bands on sale at 40% off. he saved 20$ what is the original p

kodGreya [7K]

0.40X = 20

X = 20/0.40 = $50

7 0

3 years ago