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abruzzese [7]
3 years ago
15

Solve the system of equations by substitution. x + y =  x + 7y = 8

Mathematics
2 answers:
Rudik [331]3 years ago
4 0

Answer:

ITS 1, AND 1. Just TOOK THE TEST

Step-by-step explanation:


Ugo [173]3 years ago
3 0
Its (1,1) because I just took the test
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F(x) = 3x, g(x) = 1/3f(x). Find g(0)
schepotkina [342]

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f(1/3)=3 try that its probably right

4 0
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Chad has $420 to invest. The price of a stock is $6.82 per share. What is the greatest number of whole shares Chad can buy?
gregori [183]
Approximately 61.

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3 0
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katovenus [111]
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If 5 pounds of broccoli costs $12.00 then how much will 7 pounds of broccoli cost
kondaur [170]
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8 0
3 years ago
4/x-1+6/x+1=-12/x^2-1
Mademuasel [1]
\frac{4}{x - 1} + \frac{6}{x + 1} = \frac{-12}{x^{2} - 1}

\frac{4(x + 1)}{(x - 1)(x + 1)} + \frac{6(x - 1)}{(x - 1)(x + 1)} = \frac{-12}{x^{2} - 1}

\frac{4x + 4}{x^{2} - 1} + \frac{6x - 6}{x^{2} - 1} = \frac{-12}{x^{2} - 1}

\frac{10x - 2}{x^{2} - 1} = \frac{-12}{x^{2} - 1}

(10x - 2)(x^{2} - 1) = -12(x^{2} - 1)
10x^{3} - 10x^{2} - 2x^{2} + 2 = -12(x^{2}) + 12(1)
10x^{3} - 12x^{2} + 2 = -12x^{2} + 12
10x^{3} - 12x^{2} + 12x^{2} + 2 = -12x^{2} + 12x^{2} + 12
10x^{3} + 2 - 2 = 12 - 2
\frac{10x^{3}}{10} = \frac{10}{10}

x^{3} = 1
x = 1
4 0
3 years ago
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