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Gemiola [76]
3 years ago
7

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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123 + -13 = 110

I tried.

hope that helps

4 0
3 years ago
What value of x makes the equation true?
NNADVOKAT [17]

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5 0
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you plant 15 tulip bulbs and 10 of them grow into flowers to bloom. If you plant 21 more re tulips bulbs, predict how many of th
harina [27]

Answer:

14 more flower would bloom if 21 more tulip bulb is planted.

Step-by-step explanation:

Given ratio for tulip bulbs and flowers is 15:10.

Now, finding number of flower to bloom if 21 tulip bulb are planted.

Assume if 21 tulip bulbs are planted then number of flower would bloom be"x"

ratio given: \frac{Tulip\ bulbs}{ Flower} = \frac{15}{10} = \frac{21}{x}

Cross multiplying the ratio to get:

⇒x= \frac{21\times 10}{15} = \frac{210}{15}

∴x= 14\ flowers

Hence, 14 flowers would bloom if 21 tulip bulb are planted.

If total tulip bulb is 15+21= 36, then 10+14= 24\ flowers would bloom.

5 0
3 years ago
3<br> What is the difference of<br> 21<br> ?<br> 4
PilotLPTM [1.2K]

Answer:

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Step-by-step explanation:

6 0
3 years ago
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Nikitich [7]

Answer:

The value is  \sigma = 5.46  

Step-by-step explanation:

From the question we are told that

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  Generally given from the question that we should use binomial distribution it then means that the standard deviation is mathematically evaluated as  

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=>         \sigma = \sqrt{ 922  *  0.0334 *  (1-0.0334)}

=>         \sigma = 5.46  

8 0
3 years ago
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