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Elis [28]
3 years ago
15

ONLY ANSWER THIS IF YOU HAVE AN EXPLANATION AND IF YOU KNOW WHAT THE ANSWER IS.

Mathematics
1 answer:
Bad White [126]3 years ago
6 0
Pretty sure it’s G cause everyone does math problems at a different pace. And also some math problems are more work compared to others ig. so G would have the most variability for the data
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The number of boys varies directly as the number of girls and inversely as the number of teachers. When there are 24 boys and 16
lidiya [134]
SO from what I did was...

Since 24 x 3 = 72 , I did the same to 16. 

16 x 3 = 48 

But because instead of their being 3 teachers there is 1... What I did is just was to divide 48 / 2 which gave me the answer of 24... 

So what I think the answer is... 

There are 72 boys, 24 girls, and 1 teacher... 

Unless I am just dumb and it would be 48 girls, but I think I did it right. 

I hope I was able to help out.
3 0
3 years ago
Your swimming pool containing 60,000 gal of water has been contaminated by 6 kg of a nontoxic dye that leaves a swimmer's skin a
Paul [167]

[a] Dye is removed from the pool at a rate of

(250 gal/min) * (<em>q</em>/60,000 g/gal) = -<em>q</em>/240 g/gal

where <em>q</em> denotes the amount of dye in the pool at time <em>t</em>. Clean water is pumped back into the pool, so no dye is being re-added.

So the net rate of change of the amount of dye in the pool is given by the differential equation,

\dfrac{\mathrm dq}{\mathrm dt}=-\dfrac{q(t)}{240}

with the intial value, <em>q</em>(0) = 6000 g (or 6 kg).

[b] The ODE above is separable as

\dfrac{\mathrm dq}q=-\dfrac{\mathrm dt}{240}

Integrate both sides to get

\ln|q|=-\dfrac t{240}+C

e^{\ln|q|}=e^{-t/240+C}

\implies q(t)=e^{-t/240+C}=e^{-t/240}e^C=Ce^{-t/240}

Now plug in the initial condition:

6000=Ce^0\implies C=6000

so the particular solution to the IVP is

q(t)=6000e^{-t/240}

[c] The acceptable concentration of the dy is 0.03 g/gal, which in a pool containing 60,000 gal of water corresponds to

(0.03 g/gal) * (60,000 gal) = 1800 g = 1.8 kg

of dye. Find the time <em>t</em> when this occurs:

1800=6000e^{-t/240}\implies0.3=e^{-t/240}

\implies\ln0.3=-\dfrac t{240}

\implies t=-240\ln0.3\approx288.953

so the amount of dye in the pool is within the acceptable tolerance after about 289 min have passes, or about 4.82 hrs. So no, the filtration system is not up to the task.

8 0
3 years ago
Read 2 more answers
Please help me simplify complex fractions <br><br> 1/5/3/4
Inga [223]
The answer is 4/15 decimal form is .26 and six repeates

4 0
3 years ago
Read 2 more answers
Y=4x+14 y=6x+8 solve the system
Lyrx [107]

Answer:

Step-by-step explanation: if you are doing subtitution then

Let's solve your system by substitution.

y=4x+14 and y=6x+8

Rewrite equations:

y=4x+14;y=6x+8

Step: Solvey=4x+14for y:

y=4x+14

Step: Substitute4x+14foryiny=6x+8:

y=6x+8

4x+14=6x+8

4x+14+−6x=6x+8+−6x(Add -6x to both sides)

−2x+14=8

−2x+14+−14=8+−14(Add -14 to both sides)

−2x=−6−2x−2=−6−2

(Divide both sides by -2)

x=3

Step: Substitute3forxiny=4x+14:

y=4x+14

y=(4)(3)+14

y=26(Simplify both sides of the equation)

Answer:

x=3 and y=26

4 0
3 years ago
Read 2 more answers
Raina is staining the wooden floor of a court. The court is in the shape of a rectangle. Its length is 33 feet and its width is
Lerok [7]

Answer:

33*32=1,056 square feet then divide 1,056÷132=8 you will need 8 cans to cover the court.



7 0
3 years ago
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