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guapka [62]
3 years ago
9

The perimeter of a rectangle is 38 cm. The length is 5 cm less than twice the width. Find the length and the width.

Mathematics
1 answer:
Lerok [7]3 years ago
5 0

Answer:

length = 11 , width = 18

Step-by-step explanation:

Begin by letting x represent the width.

then double the width = 2x and 5 less than this = 2x-5

meaning the length is 2x - 5

now perimeter = 2x width + 2 x length

therefore 2x + 2(2x - 5) = 38

so 2x + 4x - 10 = 38

⇒ 6l = 38 + 10 = 48 ⇒ l = 8

width = x = 8cm and length = 2x - 5 = 16 - 5 = 11cm

check check:  ( 2  x 8 )  + ( 2 x  11 )  =  16  +  22  =  38

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Answer:

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Step-by-step explanation:

Given data is as follows :

x 1 2 3 4 5 6

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What is the measure of W the parallelogram shown?
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Answer:

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In the year 2000, there were 200,000 cell phone subscribers in a city in new york. the number of subscribers increased by 60 per
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The equation can be used to model the number of subscribers, y, in the city t years after 2000 is  y = 200,000(1+60)t.

<h3>What is an equation?</h3>

An equation is a mathematical statement that is made up of two expressions connected by an equal sign. For example, 3x – 5 = 16 is an equation. Solving this equation, we get the value of the variable x as x = 7.

The first step is to calculate the percentage increase for each year.

If the subscribers increase by 60%, it means that the subscribers will be (100+60)% of the previous year.

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