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3 years ago

-3(x+n) = x what is x

Mathematics

1 answer:

svp [43]3 years ago

8 0

Answer:

x = -3n/4

Step-by-step explanation:

in order to solve for x in this expression we would open the bracket with -3 according to BODMAS rule. then we would evaluate for the value of x

-3(x+n) = x what is x

-3x-3n= x

-3x = x + 3n

-3x -x = 3n

-4x = 3n

divide both sides by the coefficient of x which is -4

-4x/-4 = 3n/-4

x = -3n/4

therefore the value of x in the expression -3(x+n) = x is evaluated to be

x = -3n/4

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If numerator is 2 less than the denominator of a rational number and when 1 is subtracted from numerator and denominator both, t

xenn [34]

Answer:

$\frac{3}{5}$

Step-by-step explanation:

Let the denominator be x
So, numerator = x - 2
According to the given condition: when 1 is subtracted from numerator and denominator both, the resulting new rational number in its simplest form is $\frac{1}{2}$

$\implies \frac{x-2-1}{x-1}=\frac{1}{2}$

$\implies \frac{x-3}{x-1}=\frac{1}{2}$

$\implies 2(x-3)=x -1$

$\implies 2x-6=x -1$

$\implies 2x-x=6-1$

$\implies x=5$

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2 years ago

Karissa is a vet tech who earns $9.64 per hour. What are her total

Ymorist [56]

Answer:

385.6

Step-by-step explanation:

The wage times the hours worked find the total she makes.

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3 years ago

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The mark obtained by Belij in an exam is 28 out of 40, express his obtained marks in percentage

Brut [27]

Marks

= 28/40

= 28/40 × 2.5/2.5

= 70/100

= 70%

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Equivalent expression: 3 + 4(2z - 1)

yKpoI14uk [10]

Answer:

8z - 1

Step-by-step explanation:

Given

3 + 4(2z - 1) ← multiply each term in the parenthesis by 4

= 3 + 8z - 4 ← collect like terms

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3 years ago

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Robinâ€™s scores: 99, 108, 102, 107, 119 Mean = 107; MAD = 5. 2 Evelynâ€™s scores: 125, 137, 138, 145, 145 Mean = 138; MAD = 5.

stiks02 [169]

The mean absolute deviation (MAD), refers to the mean of the data's absolute deviations around the data's mean.

The MAD implies that Evelyn scores are more spread out than Robin scores.

The given parameters:

Robin scores = 99, 108, 102, 107 119
Mean of Robin score, = 107
Mean absolute deviation = 5.2
Evelyn scores = 125, 137, 138, 145
Mean of Evelyn score = 5.6

The mean absolute deviation (MAD), refers to the mean of the data's absolute deviations around the data's mean. It implies the absolute distance from the mean of the data set.

The absolute distance of Evelyn scores from her mean score is greater than the absolute distance of Robin scores from his mean score.

Thus, we can conclude that Evelyn scores are more spread out than Robin scores.

Learn more about mean absolute deviation here: brainly.com/question/17381861

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