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3 years ago

Two sides of a parallelogram are in the ratio 5:4. If the perimeter is 54cm , the length of the larger side is -

Mathematics

1 answer:

Ainat [17]3 years ago

3 0

Answer:

15 cm

Step-by-step explanation:

If we have two sides of a parallelogram in the ratio 5:4, then the other two sides must also be in the same ratio.

If the perimeter is 54, we can create the following equation regarding the length of each side

$5x+4x+5x+4x=54\\\\18x=54\\\\x=3$

As our value for x is 3, and we know that the value for the larger side is 5x, we can simply plug in x to get the length of the larger side

$5x\\\\5(3)\\\\15$

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sineoko [7]

So if 3/4 of the seats are filled, there are a few methods we can use.

The simplest method:

Just multiply 3/4 by 500, to get 1500/4, or 375.

So 375 seats are filled.

A method that can be used with harder problems and will be more efficient in those cases:

Using proportions.

You could say,

?/500 = 3/4

And then cross multiply,

500 * 3 = 4 * x (say the ? = x)

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Answer:

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2 years ago

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Step-by-step explanation:

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