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Tom [10]
3 years ago
8

Marneshia walked three over eight of a mile in three over five of an hour. What equation can be used to calculate her unit rate

in miles per hour?
a

three eighths over three fifths = five eighths mile per hour


b

three eighths over three fifths = one and three fifths miles per hour


c

three fifths over three eights = one and three fifths miles per hour


d

three fifths over three eights = five eighths mile per hour
Mathematics
1 answer:
Elodia [21]3 years ago
5 0

Answer:

\frac{3}{8} / \frac{3}{5} = \frac{5}{8}

Step-by-step explanation:

Given

Distance =\frac{3}{8}

Time =\frac{3}{5}

Required

Determine the unit rate

The unit rate is calculated as:

Unit\ Rate = \frac{Distance}{Time}

Unit\ Rate = \frac{3}{8} / \frac{3}{5}

Convert to multiplication

Unit\ Rate = \frac{3}{8} * \frac{5}{3}

Unit\ Rate = \frac{1}{8} * \frac{5}{1}

Unit\ Rate = \frac{5}{8}

Hence, the expression can be represented as:

\frac{3}{8} / \frac{3}{5} = \frac{5}{8}

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Answer:

Step-by-step explanation:

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Need an answer, please need an answer, please​
trasher [3.6K]

Answer:

Step-by-step explanation:

Area = 192 m²

Perimeter= 56 m

Width = x m

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l + x = 28

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l * w = 192

(28 - x)*x = 192

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2) Equation is a quadratic equation. The roots of this equation will the dimensions of the rectangular plot.

3) The roots represent the width and length  of the rectangle.

x² - 28x +192 = 0

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Product =192

Factors =  -16 , -12   {-16 +(-12) = -28  & (-12)*(-16) = 192}

x² - 28x + 192 = 0

x² - 12x - 16x + (-16)*(-12) = 0

x(x  -12) - 16(x - 12) = 0

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x = 12 ,16

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Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Look at the image below ↓

<em>Thus,</em>

<em>to make the equation have no solution the blank has to be any number other than 2.</em>

<em />

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