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sammy [17]
3 years ago
9

Double a number decreased by 25.6 is equal to 90 Find the number

Mathematics
2 answers:
vlabodo [156]3 years ago
6 0

Answer:

The number is 57.8

Step-by-step explanation:

Let x = number

2x -25.6 = 90

Add 25.6 to each side

2x-25.6 +25.6 = 90+25.6

2x=115.6

Divide by 2

2x/2 =115.6/2

x =57.8

marin [14]3 years ago
5 0

Answer:

Step-by-step explanation:

2x-25,6=90

2x=90+25,6

2x=115,6

x=57,8

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Last angle is 122 if its a triangle 
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Número racional no entero
Varvara68 [4.7K]

An estar escrito en la forma n / 1. Por ejemplo, 5 = 5/1 y, por tanto, 5 es un número racional. Sin embargo, números como 1/2, 45454737/2424242 y -3/7 también son racionales, ya que son fracciones cuyo numerador y denominador son números enteros.

Espero que esto te ayude

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3 years ago
Please help using the picture below I need the surface area I also need an explanation
Taya2010 [7]

Answer:

155

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6 0
2 years ago
Write a equivalent expression for 12a+60
viva [34]

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8 0
3 years ago
A company is making building blocks. Each building block is a cube and has volume 125/729 ft cubed . How long is each side of th
MariettaO [177]

Answer: The length of each side of the building block is 0.56 feet

Step-by-step explanation:

A company is making building blocks. Each building block is a cube and has volume 125/729 ft cubed . Each of the building blocks has 6 faces which are squares, 8 vertices and 12 edges.

Since a square has all sides to be equal sides,

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Product of length,L, width, W and height, H.

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Since length = width = height,

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From the information given,

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L = 5/9

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4 0
4 years ago
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