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Oxana [17]
3 years ago
10

What is the quotient of x+4÷x2-16 over x2-1÷x2+3x-28

Mathematics
1 answer:
Lisa [10]3 years ago
5 0
\frac{\frac{x+4}{x^2-16}}{\frac{x^2-1}{x^2+3x-28}}\\=\frac{x+4}{(x+4)(x-4)}\times\frac{(x-4)(x+7)}{(x-1)(x+1)}\\=\frac{x+7}{x^2-1}
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40% of x is 35. What is the equation to find x
Dima020 [189]

Answer:

.40 x = 35  equation

x = 87.5

Step-by-step explanation:

Of means multiply and is means equals

40% * x = 35

Change percent to decimal form

.40 x = 35

Divide each side by .40

.40x/.40 = 35/.40

x = 35/.40

x =87.5

4 0
3 years ago
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5x-3=3x+8<br> ~~~~<br> 2<br><br> X=?<br><br> The lines a fraction
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2x^2 - 3x^2 - 4 + 6. pls Help Me ASAP .
Allisa [31]
2x^2-3x^2-4+6
Subtract the base
x^2+2
3 0
2 years ago
The prices of the 10 most popular truck tires at a tire store are shown here. What's the range of the prices?
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3 years ago
the number of years that brad has been on the soccer team is 2 less than 5 times the number of years that Scott has.in total,the
Alexeev081 [22]
Assume the following:

Brad has been in the soccer team for b years.

Scot has been in the soccer team for s years.


"The number of years that brad has been on the soccer team is 2 less than 5 times the number of years that Scott has"

means: b=5s-2


"in total,the boys have been on the soccer team for 10 years."

means: b+s=10


so we have the equations:

i) 
b=5s-2

ii) 
b+s=10


substitute b in ii) with 5s-2, as they are equal, from i

(5s-2)+s=10

5s-2+s=10

6s=12

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then , from b+s=10, b=8


Answer: Brad has been in the team for 8 years.
7 0
3 years ago
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