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3 years ago

What is Show your work

Mathematics

1 answer:

zloy xaker [14]3 years ago

5 0

Multiplying both sides of this equation by 3, to eliminate the fraction, we get:

9 + m = 6.

Next, we subtract 9 from both sides to isolate m: m = 6 - 9 = -3

Then m = -3.

Check: Subst. -3 for m in this equation:

9 - 3 6

------- = ------ = 2 (as expected). Thus, m = -3 is correct.

3 3

Problem #10:

4n - 9 = -9 Add 9 to both sides: 4n = -9 + 9 = 0.

Divide both sides by 4: n = 0.

Check: Substitute 0 for n: 4(0) - 9 = -9 is true.

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Answer: 38 degrees equal 68 degrees which is equal 38 percent is 56% is half of 68% so the answer is 24

Step-by-step explanation:

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3 years ago

"What is the scale factor of the following if YZG is dilated to RBP?"

Nataly [62]

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1/2

Step-by-step explanation:

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2 years ago

What is the total cost of a $150.00 necklace if the sales tax is 6.5%

LiRa [457]

The best thing to do is to find what 1% is, and you can do this by dividing 150 by 100.
150/100= 1.5
As you're looking for 6.5%, you've got to multiply 1.5 by 6.5
1.5*6.5= 9.75
You've then got to add 9.75 and 150 together
150+9.75= $159.75
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Hope this helps :)

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3 years ago

Ariel wrote a total of 4 pages over 2 hours. How many hours will Ariel have to spend writing this week in order to have written

Pachacha [2.7K]

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3 0

2 years ago

Help. Please. Thank You.

GenaCL600 [577]

Answer:

$(A)\ a=-6;b=4\\\\ (B)\ a=6;b=-4$

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

$y=mx+c$

Where "m" is the slope and "c" is the y-intercept.

By definition:

1. If the lines of the System of equations are parallel (whrn they have the same slope), the system has No solutions.

2. If the they are the same exact line, the System of equations has Infinite solutions.

(A) Let's solve for "y" from the first equation:

$3x-2y=-1\\\\-2y=-3x-1\\\\y=\frac{3}{2}x+\frac{1}{2}$

You can notice that:

$m=\frac{3}{2}\\\\c=\frac{1}{2}$

In order make that the System has No solutions, the slopes must be the same, but the y-intercept must not. Then, the values of "a" and "b" can be:

$a=-6\\\\b=4$

Substituting those values into the second equation and solving for "y", you get:

$-6x+4y=-2\\\\4y=6x-2\\\\y=\frac{6}{4}x-{2}{4}\\\\y=\frac{3}{2}x-\frac{1}{2}$

You can idenfity that:

$m=\frac{3}{2}\\\\c=-\frac{1}{2}$

Therefore, they are parallel.

(B) In order make that the System has Infinite solutions, the slopes and the y-intercepts of both equations must be the same. Then, the values of "a" and "b" can be:

$a=6\\\\b=-4$

If you substitute those values into the second equation and then you solve for "y", you get:

$6x+(-4y)=-2\\\\-4y=-6x-2\\\\y=\frac{-6}{-4}x-\frac{2}{-4}\\\\y=\frac{3}{2}x+\frac{1}{2}$

You can identify that:

$m=\frac{3}{2}\\\\b=\frac{1}{2}$

Therefore, they are the same line.

3 0

3 years ago