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3 years ago

The length of a rectangle is three times the width. the parameter is 240 inches. find the length and width

Mathematics

1 answer:

Bezzdna [24]3 years ago

7 0

Answer:

L = 90 inches

W = 30 inches

Step-by-step explanation:

Give the length of a rectangle L is three times the width

That’s

L = 3w

And perimeter = 240 inches

Recall that the perimeter of a rectangle is given by

P = 2(L + W)

L = 3w

We now have two equations

Now substitute 3w for L in The above formula and 240 for P.

We have

240 = 2(3w + w)

Distribute 2 into (3w + w)

240 = 2 x 3w + 2 x w

240 = 6w + 2w

240 = 8w

Divide both sides by 8

240/8 = 8w/8

30 = w

W = 30inches

Now substitute 30 for w into either of the above equations to get L .

Using

L = 3w

L = 3 x 30

L = 90 inches

L = 90 inches and

W = 30 inches

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Hi there!

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We must first determine these three parts separately.

1) f(x)

We're given that $f(x)=3^x$ :

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To find 4f(x), multiply the original function $f(x)=3^x$ by 4:

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4) Put it all together

Now, plug each of the three parts into the equation $f(x)+f(x+1)=4f(x)$ :

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Because this equation is true, $f(x)+f(x+1)=4f(x)$ is therefore true.

I hope this helps!

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3 years ago

The length of a rectangle is three times the width. the parameter is 240 inches. find the length and width​

The length of a rectangle is three times the width. the parameter is 240 inches. find the length and width