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jarptica [38.1K]
3 years ago
5

If the length of room is four times the height and breadth is twice of its height and the volume of the room is 512 m^2 find its

length breadth and height
Mathematics
1 answer:
lisov135 [29]3 years ago
8 0

Let  \: x  \: (x>0)  \: be \:  the \:  height \Rightarrow the \: width, length: 2x,4x \\ Volume:V=hwl = 512 \\ \Leftrightarrow x2x4x = 512 \\ \Leftrightarrow 8{x }^{3}  = 512 \\\Leftrightarrow  {x}^{3}  = 64 \\ \Leftrightarrow x = 4 \\ \Rightarrow The \:  height \: is \: 4 \: m, the \: width \: is \: 8 \: m

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25 points!!!!!!!!
podryga [215]

Answer:

A is your answer, my guy

Step-by-step explanation:

4x1=4

3x-1=-3

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8 0
3 years ago
Simplify 4xy + 9x - 3y + z + xy
Contact [7]
4xy + 9x - 3y + z + xy

 Combine Like Terms<span>
 =<span><span><span><span><span><span>4x</span>y</span>+<span>9x</span></span>+<span>−<span>3y</span></span></span>+z</span>+<span>xy</span></span></span><span>
   =<span><span><span><span>(<span><span><span>4x</span>y</span>+<span>xy</span></span>)</span>+<span>(<span>9x</span>)</span></span>+<span>(<span>−<span>3y</span></span>)</span></span>+<span>(z)</span></span></span><span>
   =<span><span><span><span><span>5x</span>y</span>+<span>9x</span></span>+<span>−<span>3y</span></span></span>+z</span></span>

Answer <span>=<span><span><span><span><span>5x</span>y</span>+<span>9x</span></span>−<span>3y</span></span>+<span>z


I hope this helps, can I get brainliest thanks</span></span></span>
6 0
3 years ago
Read 2 more answers
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MakcuM [25]

Answer:

This question requires a comparison between two different variables 6% and 16% values.  If we let x=$ loaned on 6% loans and y=$ loaned on 16% loans, then we can relate two equations.

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Rearrange either equation and substitute for a value in the other equation or use elimination to determine each individual variable.

Step-by-step explanation:

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Answer:

hope this helps !

Step-by-step explanation:

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Here is proof

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