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3 years ago

The length of a rectangular portrait is 2.5 time the width. The perimeter is 28 what is the length of the portrait

Mathematics

2 answers:

Kobotan [32]3 years ago

6 0

Answer:

length 10

Step-by-step explanation:

If we hace a width of x then the length is 2.5x. The perimeter of the rectangular portrait is the sum of all sides then: x+x+2.5x+2.5x as we know the perimeter is 28 then:

$x+x+2.5x+2.5x=28$

$2x+5x=28$

$7x=28$

$x=\dfrac{28}{7}=4$

As x is the width to know the length we have to multiply 4 by 2.5 then the length is 10.

Elina [12.6K]3 years ago

5 0

Answer:

Step-by-step explanation:

first ask teacher

second be polite

third ask help from your peers

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3 years ago

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vova2212 [387]

X = length of third side
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If we know that
a = 6
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Step-by-step explanation:

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