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2 years ago

15

The length of a rectangle is 3x+5 and the width of a rectangle is 4. If the area of the rectangle is 44 feet, solve for x.

1 answer:

Tema [17]2 years ago

4 0

Answer:

x = 2

Step-by-step explanation:

A = lw

44 = 4(3x+5)

44 = 12x + 20

24 = 12x

x = 2

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Viefleur [7K]

Answer:

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Step-by-step explanation:

Let the first number be x and the second be y.

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Cross multiply

$x + y = 0.70x * 2$

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Collect like terms

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Make x the subject

$x = \frac{y}{0.40}$

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$Average = (1 - 30\%) * 2.50y$

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Rewrite as:

$Average =(1 + 0.75)y$

Express as percentage

$Average =(1 + 75\%)y$

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