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3 years ago

8

If a certain negative number is multiplied by six, the result is the same as 20 less than the original number. What is the value

of the original number?

1 answer:

Wittaler [7]3 years ago

5 0

let the number be X
6X=X-20
X+6X=20
-5X=20
X=-4

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Can a -150/10 be classified as both a rational number and a integer

irakobra [83]

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The word “rational” sounds like another math word you’ve heard of before. Do you know what it is?

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3 years ago

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Rina8888 [55]

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Step-by-step explanation:

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3 years ago

If B = w + 10 and C = -w - 1, find an expression that equals B + 2C in standard form

enot [183]

Answer:

Step-by-step explanation:

B + 2C

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2 years ago

According to the data, the mean quantitative score on a standardized test for female college-bound high school seniors was 500.

Sveta_85 [38]

Answer:

6.68% of the female college-bound high school seniors had scores above 575.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 500

Standard Deviation, σ = 50

We are given that the distribution of score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(scores above 575)

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$P( x > 575) = P( z > \displaystyle\frac{575 - 500}{50}) = P(z > 1.5)$

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Calculation the value from standard normal z table, we have,

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3 years ago

How do I solve this? <br> Please help

quester [9]

Filling in the boxes:
Top row outside box: 3c and 8
Second row outside box: - or -1
Inside box: -3c and -8

Expanded: -3c - 8

5 0

2 years ago