2 years ago

How much cheaper per ounce is purchasing 6 ounces for $6.72 compared to purchasing 3 ounces for

Mathematics

2 answers:

charle [14.2K]2 years ago

8 0

Answer:

1.60

Step-by-step explanation:

alexira [117]2 years ago

3 0

It is 4 cents cheaper

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Answer:

$Length =5$

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Step-by-step explanation:

Given

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See comment for missing part of the question

Required

Complete the expression to determine the dimension of a rectangle

We have:

$x(x-3) =10$

Open bracket

$x^2 -3x = 10$

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$x^2 -3x - 10 =0$

Expand

$x^2 + 2x - 5x - 10 = 0$

Factorize

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Factor out x + 2

$(x - 5)(x + 2) = 0$

Solve for x

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$x = 5$ or $x = -2$

The value of x cannot be negative

So:

$x = 5$

Recall that:

$Length = x$

$Width = x - 3$

So:

$Length =5$

$Width = 2$ ---- i.e. 5 - 3

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