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expeople1 [14]
4 years ago
6

the rectangle shown has a perimeter of 70cm and the given area. It’s length is 8 more than twice it’s width. Write and solve a s

ystem of equations to find the dimensions of the rectangle
Mathematics
1 answer:
vfiekz [6]4 years ago
6 0

Dimensions of rectangle are:

Length = 26 cm

Width = 9 cm

Step-by-step explanation:

Perimeter of rectangle = 70 cm

Width= x

Length = 2x+8

We need to find the value of length and width of rectangle.

The formula used is:

Periemter\,\,of\,\,rectangle=2(Length+Width)

Putting values:

Periemter\,\,of\,\,rectangle=2(Length+Width)\\70=2(2x+8+x)\\70=2(3x+8)\\70=6x+16\\70-16=6x\\54=6x\\x=54/6\\x=9

So, Value of Width = x = 9 cm

Value of Length = 2x+8 = 2(9)+8 = 18+8=26 cm

So Dimensions of rectangle are:

Length = 26 cm

Width = 9 cm

Keywords: Perimeter of rectangle

Learn more about Perimeter of rectangle at:

  • brainly.com/question/6594923
  • brainly.com/question/1822996
  • brainly.com/question/2860697

#learnwithBrainly

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stealth61 [152]

Answer:

32 units²

Step-by-step explanation:

this shape is a trapezoid with a height of 4 and bases that are 4 and 12 units in length

formula is: 1/2(height) x (sum of bases)

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A = 2(16)

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7 0
3 years ago
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Newton’s Second Law of Motion states that the acceleration of an object is directly proportional to the force exerted on the obj
aev [14]

The force the same object will exert if it accelerates at a rate of 7 m/s² is 35N

From the question,

We are to determine the force the object will exert.

From the information,

Newton’s Second Law of Motion states that the acceleration of an object is directly proportional to the force exerted on the object

Let acceleration be a

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Then we can write that,

F ∝ a

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Introducing the constant, mass, m

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F = 15 N

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Putting the parameters into the formula, we get

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Now, to determine the force the same object will exert if it accelerates at a rate of 7 m/s²

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Learn more here: brainly.com/question/13590154

4 0
2 years ago
Write a mathematical expression for: the sum of twice a number n and 20.
faust18 [17]
I belive is B hope that helped
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4 years ago
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QveST [7]
The answer
the question is not clear
if it is to determine how to write this phrase as a mathematics equation, it is as follow:
let be x the unknown number
so <span>ighty-seven decreased by three times a number is greater than one hundred sixty-five means  87 - 3x>165, 
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Dennis_Churaev [7]
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3 years ago
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