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Wewaii [24]
3 years ago
13

Can you solve (4x-3)/(x+2)+(15)/(x-3)

Mathematics
2 answers:
Murljashka [212]3 years ago
8 0
Please see the pic, I'd solved in it.

Andrews [41]3 years ago
3 0
\frac{4x-3}{x+2} + \frac{15}{x-3} = 0
1st step: We need to have a common denominator.
So we do this:
\frac{(4x-3)*(x-3)}{(x+2)*(x-3)} + \frac{(15)*(x+2)}{(x-3)*(x+2)} = 0
2nd step: Distribute them
\frac{4x^{2}-3x-12x+9}{(x-3)(x+2)} + \frac{15x+30}{(x+2)(x-3)} = 0
3rd step: Do the rest of the equation!
We can put it on one fraction, its fine.
\frac{4x^2-15x+9+15x+30}{(x+2)(x-3)} = 0
\frac{4x^2+39}{(x+2)(x-3)} = 0 (-15 and 15 cancels out)
4th step: take the denominator to the other side
4x²+39 = 0 (anything × 0 = 0)
5th step: Take 39 to the other side
4x² = -39
6th step: Divide by 4 on both sides
\frac{4x^2}{4} = -\frac{39}{4}
(4 and 4 cancels out)
x² = -\frac{39}{4}
7th step: Take the square root to keep x alone
x = -\sqrt\frac{39}{4}
It can also be written as:
x = -\frac{ \sqrt{39} }{ \sqrt{4} }
Final answer:
x = -\frac{ \sqrt{39} }{2}
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Test the claim that the proportion of men who own cats is smaller than 70% at the 0.05 significance level. The null and alternat
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Answer:

the null hypothesis would be: p = 70%/0.7

The alternative hypothesis would be: p < 0.7

Step-by-step explanation:

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3 0
3 years ago
Charlotte purchased a pool for $7680 using a six-month deferred payment plan with an interest rate of 20.45%. She did not make a
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<span> Charlotte's monthly payment will be $256.96.</span>
6 0
3 years ago
a motel clerk counts his $1 and $10 bills at the end of the day. he finds that he has a total of 56 bills having a combined mone
alina1380 [7]
We can write a system of equations:

1x + 10y = 182
x + y = 56

Where 'x' is the number of $1 bills, and 'y' is the number of $10 bills.

To find this we can solve using substitution.

Re-arrange the 2nd equation:

x + y = 56

Subtract 'y' to both sides:

x = -y + 56

Now we can plug in '-y + 56' for 'x' in the first equation.

1x + 10y = 182

1(-y + 56) + 10y = 182

-y + 56 + 10y = 182

Subtract 56 to both sides:

-y + 10y = 126

Combine like terms:

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Divide 9 to both sides:

y = 14

Now we can plug this into any of the two equations to find the 'x' value.

x + y = 56

x + 14 = 56

Subtract 14 to both sides:

x = 42

So our final answer is (42, 14).

This means that the motel clerk had 42 $1 bills, and 14 $10 bills.
7 0
3 years ago
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