3 years ago

What is the value of the expression 27-24/b when b=8

Mathematics

1 answer:

masya89 [10]3 years ago

6 0

Answer:

the value of the expression is 3/8

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Solving Rational Equations. LCD Method. Show work. <img src="https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B5x%7D%20%2B%5Cfrac%

Svet_ta [14]

using the LCD method.... well, there are a couple of ways, but let's simply add them up.

well, the denominators are 5x and 2x... so the only LCD will just be 10x, since it's divisible by both, so let's use that one.

$\bf \cfrac{2}{5x}+\cfrac{7}{2x}=1\implies \stackrel{\textit{LCD of 10x}}{\cfrac{(2)2~~+~~(5)7}{10x}}=1\implies \cfrac{4+35}{10x}=1\implies \cfrac{39}{10x}=1 \\\\\\ 39=10x\implies \cfrac{39}{10}=x\implies 3\frac{9}{10}=x$

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4 years ago

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kramer

Answer:

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3 years ago

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What is 3/8 divided by 1 1/4 in its simplest form

GuDViN [60]

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Answer:

3/10

Step-by-step explanation:

(3/8)/(1 1/4) = (3/8)/(5/4) = (3/8)/(10/8) = 3/10

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3 years ago

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3 years ago

What is the solution to the equation? x=3 x=1 x=-1 x=-3

Degger [83]

Answer:

x= - 3

Step-by-step explanation:

2x - 3= 4x + 3

2x = - 6

x = - 3

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3 years ago