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Rus_ich [418]
3 years ago
5

Are the graphs of each pair of equations parallel, perpendicular,or neither? PLEASE I NEED YOUR HELP

Mathematics
1 answer:
Nata [24]3 years ago
7 0

Answer:

there is hint for u in the book darling

you can refer example 4 in the same book

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One pipe fills a storage pool in 20 hours, another pipe fills the same pool in 15 hours.
erica [24]
X=time  of the third person it would take to fill the pool 
We can suggest this equation:
6[(1/20) + (1/15) +(1/x)]=1
6[(3x+4x+60)/60x]=1
(7x+60)/10x=1
7x+60=10x
7x-10x=-60
-3x=-60
x=-60/-3
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Answer: the third person alone would fill the pool in 20 hours .
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3 years ago
1/4(z 3z) 7=−z 1 please help with this ive been stuck
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Answer:

z=0

Step-by-step explanation:

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2 years ago
Which of the following represents a valid probability distribution?
elena-14-01-66 [18.8K]

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6 0
3 years ago
Read 2 more answers
I need this urgently!! I need by 7:15!!
Sati [7]

The question is telling you that the length of the rectangle is 3 metres more than twice the width.

So let:

<em>w= width</em>

<em>L= length</em>

Because the length is 3 metres more than twice<em> </em>the width: <em>L= </em><em>2</em><em>w+</em><em>3</em>


They also tell you the perimeter is 48 metres.

<em>P= L+L+w+w</em>

So the equation of the perimeter is:

<em>48= (2w+3)+(2w+3)+2w +2w</em>

<em>48= 2(2w+3) + 4w</em>


To find w, expand and simplify.

<em>48= 4w+6+4w</em>

<em>48= 8w + 6</em>

<em>42= 8w</em>

<em>5.25=w</em>


Now that you know the width, plug in the value into the length equation:

<em>L= 2w+3</em>

<em>L=2(5.25)+3</em>

<em>L=10.50+3</em>

<em>L=13.5</em>


If I am wrong let me know! I hope this helps.

6 0
3 years ago
¿Cuál es el peso total en kilos de los dulces?<br>A<br>2<br>3<br>B<br>oln​
Doss [256]

pesan 3kilos.

3/1=0.3kilos

4 0
2 years ago
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