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4 years ago

5

Please help me to solve this equation

- by > c" alt="ax - by > c" align="absmiddle" class="latex-formula">

1 answer:

slega [8]4 years ago

8 0

Given: ax-by>c

Subtract ax on both sides: -by>-ax+c

Divide both sides by -b: y<(-ax+c)/-b

Simplify: y<(ax-c)/b

your answer: y<(ax-c)/b

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In 2001, gold was priced at (0.5x + 300) dollars per ounce. Its price tripled in 2008 and then doubled in 2011. In 2016, its pri

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Given:

Price of gold in 2001 = (0.5x+300)

Its price tripled in 2008 and then doubled in 2011. In 2016, its price dropped to $\dfrac{2}{3}$ of the price in 2011.

To find:

An expression for the price of gold per ounce in 2016.

Solution:

We have,

Price of gold in 2001 $= (0.5x+300)$

Its price tripled in 2008.

Price of gold in 2008 $= 3(0.5x+300)$

Then doubled in 2011.

Price of gold in 2011 $= 2\times 3(0.5x+300)$

In 2016, its price dropped to $\dfrac{2}{3}$ of the price in 2011.

Price of gold in 2016 $=\dfrac{2}{3}\times 2\times 3(0.5x+300)$

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3 years ago