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Slav-nsk [51]
2 years ago
5

the length of a rectangle is 3 times its width. the perimeter is 55. find the length and width of the rectangle

Mathematics
1 answer:
Shkiper50 [21]2 years ago
4 0

Answer:

Step-by-step explanation: L= length    w= width   p= perimeter

L=3W         p=55CM

P. of rectangle= 2(l+w)=55cm

L+w= 55/2= 27.5 cm

3w+w=27.5cm

4w=27.5cm

w=27.5/4=6.875cm          w=6.875cm     L= 3w=6.875*3=20.625cm

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X = # of perfomances

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Income: y = 7500x

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Substitution:

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5 0
2 years ago
You've just purchased 12 lb of celery. You take it back to your kitchen and proceed to trim and cut it into pieces, ending up wi
Alecsey [184]
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The amount of purchased celery = 12 lb = 12 * 16 = 192 oz
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3 0
3 years ago
Determine the values of a for which the following system of linear equations has no solutions, a unique solution, or infinitely
navik [9.2K]

Answer:

Never

Never

Never

Step-by-step explanation:

The equations given are

2x1−6x2−4x3 = 6 ....... (1)

−x1+ax2+4x3 = −1 ........(2)

2x1−5x2−2x3 = 9 ..........(3)

the values of a for which the system of linear equations has no solutions

Let first add equation 1 and 2. Also equation 2 and 3. This will result to

X1 + (a X2 - 6X2) - 0 = 5

And

X1 + (aX2-5X2) + 2X3 = 8

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a unique solution,

Let first add equation 1 and 2. Also equation 2 and 3. This will result to

X1 + (a X2 - 6X2) - 0 = 5

And

X1 + (aX2-5X2) + 2X3 = 8

The value of a = never

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Divide equation 1 by 2 we will get

X1 - 3X2 - 2X3 =3

Add the above equation with equation 3. This will result to

3X1 - 8X2 - 4X3 = 12

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Value of a = never.

4 0
3 years ago
Help me with writing a check please
Dennis_Churaev [7]

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Step-by-step explanation:

3 0
2 years ago
An arc has a length of 123.53 millimeters and a radius of 28 millimeters. What is the measure of the angle of the sector in degr
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Answer:

Step-by-step explanation:

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360(123.53)=56\pi \theta and

\frac{360(123.53)}{56\pi}=\theta so

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4 0
3 years ago
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