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jeka94
3 years ago
14

Area is 20 square units. the length is 4 more than 3 time the width. find the dimension

Mathematics
2 answers:
Andreyy893 years ago
8 0

starts with 20 smthing x3 +4 =  20 but what is it ???? hmmmm if you think more you can fiqure it out by just finding random numbers so use ur brain i guess???

dezoksy [38]3 years ago
4 0

Answer:

width: 2

length: 10

Step-by-step explanation:

L = 3W + 4

A = LW = (3W + 4) x W

  = 3w² +4w

3w² + 4w = 20

3w² + 4w -20 = 0

(w - 2) (3w + 10) = 0

w = 2 or w = - 10/3     (width is positive)  ∴ width = 2

length = 3 x 2 + 4 = 10

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Answer:

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Step-by-step explanation:

7(3x-4)=49

21x-28=49

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3 0
3 years ago
A rectangular pyramid was sliced parallel to its base. What is the shape of the cross section
nignag [31]

<u>Answer:</u>

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<u>Step-by-step explanation:</u>

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Refer to the figure below for better understanding.

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3 years ago
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3 years ago
A pencil is `120` millimeters long.
leva [86]

Given the length of the pencil, the length of the marker is 130.8 millimeters.

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How do you know if a graph you are looking at shows a periodic function?
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