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Archy [21]
4 years ago
5

A rectangular room is three times as long as it is wide, and its perimeter is 40 meters. Find the width of the room.

Mathematics
1 answer:
spayn [35]4 years ago
3 0
40*3 =120 is the width
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(7+2-3-8)=0
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4 years ago
-2x - 4 + 5y = 8 solve?
snow_tiger [21]

Step-by-step explanation:

-2x - 4 + 5y = 8

-2x + 5y = 8 + 4

-2x + 5y = 12

<em>Hope</em><em> </em><em>this helps</em><em>.</em><em>.</em><em> </em><em>Good</em><em> </em><em>luck</em><em> </em><em>:</em><em>)</em><em> </em>

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Maurinko [17]

Answer: 0.8

Step-by-step explanation:

The formula to find area of a parallelogram is A = bh. This means that area = base x height. You can manipulate this formula to what height equals instead of the area. To do that, you can divide b on both sides. This would make the equation h = A/b.

Now that you know how to find what height equals, first find the base of the parallelogram. To find b, multiply 6 x 5. 6 x 5 = 30. This means that your base is 30.

Take the information given to you in the problem about the area. The area is given to you. We know that the area is 24 squared units. Remember what the equation to find height is. It's h = A/b. Substitute the variables for your numbers. h = 24/30.

24/30 = 0.8.

This means that your height is 0.8. This would be 8/10 in fraction form, but you can simplify it further to 4/5.

Hope it helps. Good luck!

8 0
3 years ago
What is the slope of the line by the equations below? y-9=15 (x-5)
ipn [44]

To find the slope, you should rearrange the equation into slope-intercept form, ie. y = mx + c, where m is the gradient.

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y = 15x - 15*5 + 9 (Expand 15(x - 5))

y = 15x - 75 + 9

y = 15x - 66

Therefor, the slope of the equation is 15.

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3 years ago
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masha68 [24]
5 quarters and 8 dimes would be your answer :)

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3 years ago
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