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3 years ago

Solve for x. -4.5 (x - 8.9) = 12.6 Enter your answer, as a decimal, in the box.

2 answers:

7 0

For a Brainliest?

<span>Simplifying 21.5x + -7.7 + -12.6x + 17 = 0 Reorder the terms: -7.7 + 17 + 21.5x + -12.6x = 0 Combine like terms: -7.7 + 17 = 9.3 9.3 + 21.5x + -12.6x = 0 Combine like terms: 21.5x + -12.6x = 8.9x 9.3 + 8.9x = 0 Solving 9.3 + 8.9x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9.3' to each side of the equation. 9.3 + -9.3 + 8.9x = 0 + -9.3 Combine like terms: 9.3 + -9.3 = 0.0 0.0 + 8.9x = 0 + -9.3 8.9x = 0 + -9.3 Combine like terms: 0 + -9.3 = -9.3 8.9x = -9.3 Divide each side by '8.9'. x = -1.04494382 Simplifying x = -1.04494382</span>

ollegr [7]3 years ago

5 0

I believe that the answer would be 26. First, put 26 for x and subtract 8.9 from 26 s 26 - 8.9 = 17.1. Next, you will subtract -4.5 from 17.1 which equals 12.6. So 26 is your answer.

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the student should score atleast 229 to be among the top 10%.

Step-by-step explanation:

in terms of the normal distribution, and if the table that you're using calculates the area of the normal distribution from the mean to a point x, only then what we are actually finding the value 'x' at which the z-score is at 40% (the rest 50% is already skipped by the table)

$P(0.4) = \dfrac{x - \mu}{\sigma}$

after finding the the value at this z-score, we can find the value of x at which the score is in the top 10% range.

we can find the z-score either using a normal distribution table or calculator. (but be sure what area is it calculating)

looking at the table the closest value we can find is, 0.4015 at z = 1.29 ((it is above 40% because we want to be in the top 10% range)

$P(0.4015) = \dfrac{x - 100}{100}$

$1.29 = \dfrac{x - 100}{100}$

$x = 1.29(100) + 100$

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the student should score atleast 229 to be among the top 10%.

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2 years ago

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matrenka [14]

Answer:

1/6

Step-by-step explanation:

If you divide the numerator and the denominator by 4, you will get a simplified fraction 1/6

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3 years ago

Henry buys a softball for $16 plus a 9% tax. Ella buys a pair of shoes for $17 plus a 9% tax. Enter the difference in the

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Step-by-step explanation:

Henry: 16 increase 9% =

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Ella: 17 increase 9% =

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Step-by-step explanation:

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b) 55x+135=$2,335
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x=2200/55
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c) She spent 40 days

Hope I helped :)

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3 years ago