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erastova [34]
3 years ago
7

I need help with this question. Can someone help me with it? And show work!

Mathematics
2 answers:
weqwewe [10]3 years ago
8 0

Answer:

B

Step-by-step explanation:

1/3 of the 30 students would be 10 so

30-10=20

Then you would take away 1/5 of 30 which would be 6.

20-6=14

14 is the amount of students left

kondor19780726 [428]3 years ago
4 0

Answer:

B

Step-by-step explanation:

K=1/3=10

L=1/5=6

10+6=16

30-16=14

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Solve the following system of equations: −2x + y = 1 −4x + y = −1
Katyanochek1 [597]

Answer:

<h2>x = 1, y = 3 → (1, 3)</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}-2x+y=1\\-4x+y=-1&\text{change the signs}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}-2x+y=1\\4x-y=1\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad2x=2\qquad\text{divide both sides by 2}\\.\qquad x=1\\\\\text{Put it to the first equation:}\\\\-2(1)+y=1\\-2+y=1\qquad\text{add 2 to both sides}\\y=3

5 0
3 years ago
What is 5/18 + (-1/6)
Jobisdone [24]

Answer:

2/18, 1/9

Step-by-step explanation:

5/18 + (-1/6)

-1/6=-3/18

5/18+(-3/18)=

2/18

3 0
3 years ago
Read 2 more answers
Select the correct answer from each drop-down menu.
pychu [463]

The figure shows that the polygon:

  • Has 6 sides.
  • Divided into 4 triangles.
  • Total interior angle measure of 180°.
  • Total measure of the interior angles of this polygon is 720°.

<h3>What is the polygon about?</h3>

The polygon has sides of: AB, BC, CD, DE, EF, FA.

So, this means that they have 6 sides and when you look at the diagram, this 6 sides can be divided into 4 triangle of which whose total interior will sum up to 180°.

Since there are 4 triangles and the interior is 180°, then to get  the total measure of the interior angles of this polygon will be:

= 180 X 4 = 720

Therefore, one can say that the The figure shows that the polygon, has 6 sides, may be divided into 4 triangles, each of which will have a total interior angle measure of  180. Therefore, the total measure of the interior angles of this polygon is 720.

Learn more about Polygon from

brainly.com/question/1592456

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5 0
1 year ago
Andrew has a cell phone plan that provides 300 free minutes each month for
Mekhanik [1.2K]

Answer:

Andrew has a cell phone plan that provides 300 free minutes each month for a flat rate of $19. For any minutes over 300, Andrew is charged $0.39 per minute. Let x be the number of minutes Andrew uses per month and f(x) be the charges based on Andrew's cell phone plan. If  then If  then first 300 minutes are free and each minute of next (x-300) minutes costs $0.39, therefore Hence, { 19 + 0.39(x - 300), x > 300

Hoped I helped

4 0
3 years ago
Solve for x: -4x – 12 &gt; 36 A. x &gt; -12 B. x &gt; 12 C. x &lt; -12 D. x &lt; 12
Nataliya [291]

Answer: x < -12

Step-by-step explanation:

-4x – 12 > 36

4x > 36+ 12

-4 > 48

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Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great rest of Black History Month! :-)  

- Cutiepatutie ☺️❀❤

4 0
3 years ago
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