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Korolek [52]
3 years ago
7

PLEASE HELP !! Ty!

Mathematics
2 answers:
sleet_krkn [62]3 years ago
7 0

Answer:

$3.75

Step-by-step explanation:

vekshin13 years ago
5 0

Answer: $0.05 x 75 = $3.75

Step-by-step explanation:

So 1 hour is 60 minutes and 1/4 hour is 15 minutes. Add these together to get 75 minutes. Multiply 75 minutes by 0.05 cents and you get $3.75.

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the area of a rectangle is 90 in2^. the ratio of the length to the width is 5:2. find the length and the width
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Length and width of rectangle is 15 inches and 6 inches respectively

<h3><u>Solution:</u></h3>

Given that area of a rectangle is 90 square inch

Ratio of length to the width = 5: 2.

Need to determine length and width of rectangle.  

As ratio of length to the width is 5 : 2

Lets assume length of rectangle = 5x inches and width of rectangle = 2x inches.

<em><u>The formula for area of rectangle is given as:</u></em>

\text { Area of rectangle }=\text { length of rectangle } \times \text { width of rectangle}

Substituting the given value of area of rectangle and assumed value of length and width of rectangle we get:

\begin{array}{l}{90=5 x \times 2 x} \\\\ {=>90=10 x^{2}}\end{array}

On solving the above expression for x we get

\begin{array}{l}{=>\frac{90}{10}=x^{2}} \\\\ {=>x^{2}=9} \\\\ {=>x=\sqrt{9}=3}\end{array}

\begin{array}{l}{\text { Length of rectangle }=5 \times x=5 \times 3=15 \text { inches }} \\\\ {\text { Width of rectangle }=2 \times} x=2 \times} 3=6 \text { inches }}\end{array}

Hence length and width of rectangle is 15 inches and 6 inches.

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Step-by-step explanation:

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