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MatroZZZ [7]
3 years ago
6

Please do these problems, and show work:

Mathematics
1 answer:
masha68 [24]3 years ago
6 0
Here’s the first one

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This the the way to solve this answer

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21.) A rectangle has an area of 36 square units. As the length and width change, what do you know about their
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Answer:

the length and the width are inversely proportional to each other (l=\frac{36}{w} or w=\frac{36}{l})

Step-by-step explanation:

Let

l units = length of the rectangle,

w units = width of the rectangle.

The area of the rectangle is

\text{Area}=\text{Length}\cdot \text{Width}

A rectangle has an area of 36 square units, so

l\cdot w=36

Complete the table with some values of l and w that fit the previous formula:

\begin{array}{ccc}\text{Length}&\text{Width}&\text{Area}\\ \\36&1&36\cdot 1=36\ un^2.\\18&2&18\cdot 2=36 \ un^2.\\12&3&12\cdot 3=36\ un^2.\\ 9&4&9\cdot 4=36\ un^2.\\l&w&l\cdot w=36 \ un^2.\end{array}

As you can see, the length and the width are inversely proportional to each other (l=\frac{36}{w} or w=\frac{36}{l})

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48% of the students in the class play sports. 12 students in the class play sports , how many students are in the class?
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The answer is 25 students.
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