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babymother [125]
4 years ago
11

Simplify.. The square root of 8/18. A. -2/3. B. 2/3. C.2. D. 3/2

Mathematics
2 answers:
ira [324]4 years ago
4 0
8/18 = 4/9 ( divide both numerator and denominator by 2 )
√4 = 2  and √9 = 3
\sqrt{ \frac{8}{18} } =  \sqrt{ \frac{4}{9} } =  \frac{2}{3}
Answer:  B ) 2/3
Bond [772]4 years ago
4 0
It'd be b because if you divide 8/18 by 2 then you get 4/9 then if you square root both of them then you get 2/3
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Let x equal the kind of candy that costs $1.50 a pound
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We're going to need to make a system of equations, or two equations with the same variables. 
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Now, we're going to take the first equation and isolate a variable
x = 10-y
Next, we replace the x in the second equation with our new expression for x
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15 - 1.5y +1.35y = 14.55
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Then, take the y value and plug it into either equation. We're going to use the first one because it's easier.
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x = 7
Finally, plug your two numbers into the second equation to check.
1.5x + 1.35y =14.55
1.5(7) + 1.35(3) = 14.55
10.50 + 4.05 = 14.55
14.55 = 14.55

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