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kherson [118]
3 years ago
11

The length of a rectangle is twice the width. Find the width if the perimeter is 36 centimeters. Define a variable, write an equ

ation, and solve the problem.​
Mathematics
1 answer:
VARVARA [1.3K]3 years ago
3 0

Answer:

12cm

Step-by-step explanation:

1. Define the variable:

x = length of the rectangle

2x = width of the rectangle

2. Set the equation:

x + 2x is half of the rectangle

2(x + 2x) is the perimeter

So,

2(x + 2x) = 36

2x + 4x = 36

6x = 36

x = 6

Since x is the length, multiply it by 2 to find the width.

2x = 12

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It is 35x+20

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104 14/15

Step-by-step explanation:

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50 points! Someone actually help instead of putting random answers! Random answers will be reported
In-s [12.5K]

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<h2>Answer</h2>

•Pic on the left

x = 8.36

y = 140.18°

• Pic on the right

x = 110°

<h2>Way to do</h2>

• This one for the pic on the left

#Since the total degree of a triangle is 180° and one of the side known 90° (L) so the rest must be 90° (180° - 90° = 90°)

#known that the other side of triangle degree is (5x - 2)° and 6x° so... u can find the x! :D

90 = (5x - 2) + 6x

90 = 11x - 2

90 + 2 = 11x

92 = 11x

x = 92 : 11

x = 8.36 (2 decimal places)

#Now you know the x, you can now find the degree

#degree of (5x - 2)

5x - 2 =

5(8.36) - 2 =

41.81 - 2 = 39.81

#Since the y° is in the other side of the line of degre 39.81°, you can find it by minus it with 180° (straight line with no degree is 180°)

180° - 39.81° = 140.18

•This one for the pic on the right

#Lol this one is easy. I already told you before that the straight line degree is 180° and you can find one of the side if you know one of the degree side, so you can find it.

# Also as i said before, total triangle degree is 360°

#Find the degree of the other side of x° (only can find the degree of other side x because its inside the triangle)

Degree = 180° - 80° - 30° = 70°

#Now you can get x

x = 180° - 70° = 110°

<h2>For moderators that see this</h2>

#Moderators please don't be mean, dont delete my answers just for approval from your senior or just to get the biggest moderation daily rank. This answer is long, how can you just instanly delete it? :(

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136 would be the answer
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What is the mixed number and improper fraction for 4.8
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Mixed number=4 8/10=4 4/5

improper fraction=48/10=24/5
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