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Arte-miy333 [17]
2 years ago
6

What is the range of possible sizes for side x?

Mathematics
2 answers:
OleMash [197]2 years ago
7 0
3.2 I think sry if wrong
Novosadov [1.4K]2 years ago
6 0
The correct answer is 3.2
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A rectangle has length 72 cm and width 56 cm. The other rectangle has the same area as this one, but its width is 21 cm. What is
Ira Lisetskai [31]

The length of the rectangle is = 72 cm

The width of the rectangle is = 56 cm

Area of the rectangle is = length*width

= 72\times56=4032 cm²

As given, the other rectangle has the same area as this one, but its width is 21 cm.

Let the length here be = x

4032=x*21

x=\frac{4032}{21}=192

Hence, length is 192 cm.

We can see that as width decreases, the length increases if area is constant and when length decreases then width increases if area is constant.

So, in the new rectangle,constant of variation=k is given by,

\frac{192}{72}=\frac{8}{3} or \frac{56}{21}=\frac{8}{3}

Hence, the constant of variation is \frac{8}{3}

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Step-by-step explanation:

5 - 4 + 7x + 1 = 7x + 2.

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Step-by-step explanation:

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Step-by-step explanation:

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