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dybincka [34]
2 years ago
9

A pool pump feels 1/6 of the pool and 1/3 hour how much it is swimming pool is filled in 1 hour?

Mathematics
1 answer:
Flauer [41]2 years ago
6 0

Make the fractions equivalent.

1/3 ×2 = 2/6

Answer: 2/6

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Need pre-cal help. Will mark best answer brainliest
OlgaM077 [116]

so, let's keep in mind that

\bf \begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}

so let's make a quick table of those solutions, say A, B, C solutions with x,y,z liters of acid, with an acidity of 0.25, 0.40 and 0.60 respectively.


\bf \begin{array}{lcccl} &\stackrel{solution}{quantity}&\stackrel{\textit{\% of }}{amount}&\stackrel{\textit{liters of }}{amount}\\ \cline{2-4}&\\ A&x&0.25&0.25x\\ B&y&0.40&0.4y\\ C&z&0.60&0.6z\\ \cline{2-4}&\\ mixture&78&0.45&35.1 \end{array} \\\\\\ \begin{cases} x+y+z=78\\ 0.25x+0.4y+0.6z=35.1 \end{cases}


we know she's using "z" liters and those are 3 times as much as "y" liters, so z = 3y.


\bf \begin{cases} x+y+3y=78\\ x+4y=78\\[-0.5em] \hrulefill\\ 0.25x+0.4y+0.6(3y)=35.1\\ 0.25x+0.4y=1.8y=35.1\\ 0.25x+2.2y=35.1 \end{cases}\implies \begin{cases} x+4y=78\\\\ 0.25x+2.2y=35.1 \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ x+4y=78\implies \boxed{x}=78-4y \\\\\\ \stackrel{\textit{using substitution on the 2nd equation}}{0.25\left( \boxed{78-4y} \right)+2.2y=35.1}\implies 19.5-y+2.2y=35.1


\bf 1.2y=15.6\implies y=\cfrac{15.6}{1.2}\implies \blacktriangleright y=13 \blacktriangleleft \\\\\\ x=78-4y\implies x=78-4(13)\implies \blacktriangleright x=26 \blacktriangleleft \\\\\\ z=3y\implies z=3(13)\implies \blacktriangleright z=39 \blacktriangleleft \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \stackrel{25\%}{26}\qquad \stackrel{40\%}{13}\qquad \stackrel{60\%}{39}~\hfill

5 0
2 years ago
Help a girl out thank you ​
KonstantinChe [14]

Answer: number 2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Identify the fractions labeled with the letters A and B on the scale.
romanna [79]
A is 1/8 and b is 5/8, hope this helps!
7 0
3 years ago
2 and the square root of 81 + the square root of 64
Veseljchak [2.6K]

Answer:

74.5

Step-by-step explanation:

i did it on my calculator and it says it is 74.5.

5 0
3 years ago
if 6th term of an ap is -10 and 10 th term is -26 then find thr 15 term​ plzzzzzzzzzzzzzzzzzzzzzzz answer i will give whatever y
Rudik [331]

Answer:

-46

Step-by-step explanation:

We need to find the common difference of this arithmetic sequence:

\frac{-26-(-10)}{10-6} =\frac{-16}{4} =-4

So, the common difference d = -4. We can now write the equation:

a_n=a_1+d(n-1)

a_{15}=a_6+d(15-6)=-10-4(9)=-10-36=-46

So, the 15th term is -46.

Hope this helps!

5 0
2 years ago
Read 2 more answers
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