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Over [174]
2 years ago
7

If the length of rectangle is x + 4 and the width is 3x - 5 what is the perimeter?

Mathematics
2 answers:
statuscvo [17]2 years ago
6 0

Answer:

8x-2

Step-by-step explanation:

l = x+4

w = 3x-5

The perimeter is

P =2(l+w)

   = 2(x+4+3x-5)

Combine like terms

   = 2(4x-1)

Distribute

   = 8x-2

Nostrana [21]2 years ago
3 0

Answer:

8x-2

Step-by-step explanation:

The perimeter of a rectangle is 2L + 2W, where L represents the length and W represents the width. In this scenario, L is equal to x + 4 and W is equal to 3x - 5. We can setup an equation:

2(x+4)+2(3x-5)

We can then multiply x - 4 by 2 to get 2x+8

We can then multiply 3x - 5 by 2 to get 6x-10

Adding them together, we get the answer as 8x-2

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Answer:

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7 0
2 years ago
Solve: 3x+5=14<br><br> Find the value of x
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Step-by-step explanation:

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8 0
3 years ago
When producing hydrogen iodide, the energy of the reactants is 581 kJ/mol, and the energy of the products is 590 kJ/mol. The equ
dimaraw [331]

The energy of the reaction is 9 kJ/mol and the reaction is endothermic.

<h3>What is the total energy of the reaction?</h3>

We know that in a reaction, there could be loss or gain of energy. If there is a loss of energy in a reaction, it means that the reaction is exothermic and heat is given out. If heat is gained in the reaction, it means that the reaction is endothermic and heat is absorbed.

Given that;

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Energy of the reactants = 581 kJ/mol

Using;

Energy of products - Energy of reactants

= 590 kJ/mol - 581 kJ/mol

= 9 kJ/mol

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5 0
1 year ago
Solve the compound inequality.
kondaur [170]

Answer:

x can be any real number

Step-by-step explanation:

5x<=21+2x

Or

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