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Firdavs [7]
3 years ago
14

A rectangle is 4 times as long as it is wide. The perimeter of a rectangle is 50 cm. What are the dimensions of the rectangle?

Mathematics
2 answers:
marissa [1.9K]3 years ago
7 0
We use the equation 2x+8x=50.

10x=50
x=5

The rectangle will be 20 cm long and 5 cm wide.

Hope this helps!
Contact [7]3 years ago
4 0

Answer:

5 cm ( width ) , 20 cm (length)

Step-by-step explanation:

Let width = w

Let length = 4w

Perimeter = 50

Perimeter formula for a rectangle = 2l + 2w

Plug in the variables (width and length)

2(w) + 2(4w) = 50

2w + 8w = 50

10w = 50

w = 5

<u>Remember, recall that length = 4w</u>

length = 4w

length = 4(5)

length = 20

Therefore, the dimensions of the rectangle are 5 by 20 cm

<h3><em>If this helped you, please make sure to give me the brainliest answer to support me. It will be greatly appreciated. Thank you!</em></h3>

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klio [65]

Step-by-step explanation:

let eqn be y = mx + b.

m = (5 - (-11))/(0 - 4) = -4

sub (0, 5):

5 = -4(0) + b

b = 5

therefore, eqn is y = -4x + 5

Topic: coordinate geometry

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6 0
2 years ago
Read 2 more answers
For a circle with a radius of 6 feet, what is the measurement of the central angle (in degrees) that intercepts an arc
geniusboy [140]

Answer: The central angle measures 135 degrees

Step-by-step explanation: We have been given an arc with length 9pi/2 feet and a radius of 6 feet. The arc is shown in the attached diagram (please see attachment). The central angle subtended by this arc is at point O and has been labeled angle X.

So if the diagram shows arc AB with length 9pi/2 and radius AO with length 6, we can use the formula to compute “Length of an arc” to arrive at the missing angle.

Length of an arc = X/360 x 2pi x radius

Substituting for the known values, our formula can now be re-written as

9pi/2 = X/360 x 2pi x6

By cross multiplication we now have

9pi/2pi x 6 = 2X/360

We simplify as much as possible by dividing all like terms, hence pi divides pi on the left side of the equation. Also 2 divides 360 on the right side of the equation.We now arrive at,

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Simplify even further and we have

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6 0
3 years ago
Tell whether the rates are equivalent. Justify your answer.
IrinaK [193]

Answer:

30 centimeters every 15 months is correct the other one isnt.

Step-by-step explanation:

7 0
2 years ago
0.007 is 1\10 of what because I don't make sense
irina1246 [14]
0.007 x 10 = 0.07

<span>In the scientific value of 5.893 x 10n. The standard value is 0.00005893 what is n? To better illustrate this phenomenon, we can explain it further under the rules of scientific notation. </span>
<span>For example. </span><span><span>
1. </span> 3 x 10^3 = 3 x 100 = 300</span> 
<span><span>2. </span> 3 x 10^-3 = 3 x 0.001 = 0.003</span> 

<span>Solution: </span>
<span>0.00005893 = 5.893 x 0.00001 = </span>5.893 x 10^-5   
n= ^-5


7 0
3 years ago
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Travka [436]

Answer:

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I'll assume you wrote:

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3 0
2 years ago
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