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Rom4ik [11]
3 years ago
15

Find the unknown value in the proportion: x⁄32 = 76⁄128

Mathematics
2 answers:
Mumz [18]3 years ago
5 0
To do this you cross multiply, so you'd get 128x=512 then you divide 128 on both sides so you get x=512/128 and you get 4.
Vsevolod [243]3 years ago
5 0

Answer:54

Step-by-step explanation:

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25N is N multiplied by 25 so it wont be a percentage of it
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Solve 3x + 7 = 3(x - 2)
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VERY EASY QUESTION. Write out this equation: ten times the sum of half a number and 6 is 8
bija089 [108]

Answer:

x

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58

5

Step-by-step explanation:

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(

?

+

?

)

half a number:

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and 6:

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is 8 :

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'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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x

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6 0
3 years ago
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Write the algebraic expression for the difference between the squares of two numbers.
V125BC [204]

The algebraic expression for the difference between the squares of the two numbers, supposing the two numbers to be a and b, is

a² - b² = (a + b)(a - b).

An algebraic expression is a combination of terms, where the terms are separated using mathematical operators like plus (+), minus (-), multiply (*), and divide (/).

The terms are combinations of numerals and variables.

Variables are represented alphanumerically, which can hold any value as per the expression they are used in.

In the question, we are asked to write the algebraic expression for the difference between the squares of two numbers.

We assume the two numbers to be a and b respectively.

Thus, we are asked to write an expression for the difference between the square of a and square of b, that is, we are asked to write an expression for a² - b².

We know that a² - b² is an identity, which can be shown as (a + b)(a - b).

Thus, the algebraic expression for the difference between the squares of the two numbers, supposing the two numbers to be a and b, is a² - b² = (a + b)(a - b).

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