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2 years ago

What does X in math mean for algebra

Mathematics

2 answers:

Leokris [45]2 years ago

7 0

Answer:

A variable or unknown

Step-by-step explanation:

An X in math usually indicates an unknown or a variable. As an unknown in an equation, X bears a value that you, a mathematician, have to find. As a variable in a function, X can be substituted with a numeric value, which then gives the value a function.

hoa [83]2 years ago

3 0

Answer:

the undetermined factor. usually what ur trying to figure out.

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Rob is twice Joshua's age. Nick is 5 years older than Joshua. The sum of all their ages is 45. How old is Nick?

MatroZZZ [7]

Given

Rob is twice Joshua's age

Nick is 5 years older than Joshua.

sum of all their ages is 45.

Find the age of nick.

To proof

As given

Rob is twice Joshua's age

let Joshua's age = x

than Rob age = 2x

Nick is 5 years older than Joshua.

Nick age = 5 + x

sum of all their ages is 45

than the equation becomes

Joshua's age + Rob age + Nick age = 45

put the value

x + 2x + 5 + x = 45

4x = 40

x = 10

Joshua's age = 10 year

than Rob age = 20 year

Nick age = 5 + 10

= 15year

Hence proved

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2 years ago

To clear fractions from the equation 3/4n+1/3n=26, you could multiply each term on both sides by 4

Lady bird [3.3K]

FALSE. You'd have to multiply each by 12n to get rid of the denominators.

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2 years ago

5 employees in a company are male. the company employees a total of 20 employees. what percentage of employees are male

lakkis [162]

Answer: 25%.

Step-by-step explanation:

5/20= 0.25 or 25%

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2 years ago

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OLga [1]

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Step-by-step explanation:

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The normal temperature range for Yuma, AZ on January 11 is at least 48 degrees but no higher than 64 degrees Fahrenheit. Which i

WITCHER [35]

Answer: Our required interval for temperature is $48\leq x\leq 64$

Step-by-step explanation:

Since we have given that

The normal temperature range for Yuma, on Janurary is atleast = 48 degrees

and the highest temperature on that day is no higher than 64 degrees.

Let the temperature in Yuma be 'x'.

So, we know that for atleast means it can 48 degrees or more, and no higher than means it should be equa to or less than 64 degrees.

Mathematically, it is expressed as

$48\leq x\leq 64$

Hence, our required interval for temperature is $48\leq x\leq 64$

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2 years ago