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Shtirlitz [24]
3 years ago
8

Please help with this

Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
7 0

Answer:

c = 10

Step-by-step explanation:

This can be solved with Pythagreon Thereom.

{a}^{2}  +  {b}^{2}  =  {c}^{2}

Follow the steps below. A and B are the heaight an base, C is they hypotonuese.

{6}^{2}  +  {8}^{2}  =  {c}^{2}  \\ 36 + 64 =  {c}^{2}  \\ 100 =  {c}^{2}  \\ 10 = c

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A pool has 2 pipes, one to fill and one to empty it. Ms.Charles wants to fill the pool, but she mistakenly turns on both pipes a
dolphi86 [110]

-- The filler pipe can fill 1/6 of the pool every hour.

-- The drainer pipe can drain 1/10 of the pool every hour.

-- When they're filling and draining at the same time, the filler pipe
will win eventually, because it finishes more of the pool in an hour
than what the drain pipe can finish in an hour.

-- When they're filling and draining at the same time, then every hour,
1/6 of the pool fills and 1/10 of it empties.  The difference is   (1/6) - (1/10).

To do that subtraction, we need a common denominator.
The smallest denominator that works is 30.

       1/6  =  5/30

     1/10  =  3/30 .

So in every hour,  5/30 of the pool fills, and  3/30 of the pool empties.
The result of both at the same time is that  2/30 = 1/15  fills each hour.

If nobody notices what's going on and closes the drain pipe, it will take
<em><u>15 hours</u></em> to fill the pool.


If the drain pipe had <em><u>not</u></em> been open, the filler pipe alone could have filled
the pool <em><u>2-1/2 times</u></em> in that same 15 hours.  With both pipes open,
1-1/2 pool's worth of water went straight down the drain during that time,
and it was wasted. 

I would say that the school should take the cost of 1-1/2 poolsworth out
of Ms. Charles' pay at the rate of $5 a week.  I would, but that would
guarantee her more job security than she deserves after pulling a stunt
like that.

I hope this did not take place in California.


6 0
3 years ago
Which of the following is the image of the point for the given rotation, r (120°) (F)?
bogdanovich [222]

Answer:

B

Step-by-step explanation:

360/6

6 is number of sides

You get 60

Rotate twice to reach 120

Moving F Counter clockwise twice is where B was

5 0
3 years ago
Help
Mariulka [41]

The larger number is 120 and the smaller number is 80
4 0
3 years ago
What is the surface area of this
Alexeev081 [22]

<u><em>60 inches is correct answer.</em></u> First you had to used their volume=length*width* height to used their formula of surface area. You had to  go to 5*4=20, and 20*3=60, <u><em>60 inches is the correct answer.</em></u> Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie

4 0
4 years ago
A swimming pool is 20 feet wide and 40 feet long. If it is surrounded by a walkway of square tiles, each is 1 foot by 1 foot, ho
Lena [83]

Answer:

124 tiles

Step-by-step explanation:

2(20+40)

2(60)

120+4=124

5 0
3 years ago
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