2 years ago

What is a correct first step in solving the inequality -4(3-5x)>-6x+9?

Mathematics

1 answer:

FrozenT [24]2 years ago

4 0

Answer:

you would distribute the -4 into the parenthesis and the answer would be option D

Step-by-step explanation:

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xz_007 [3.2K]

The answer is 564 three digit numbers you can form with 1,2,3,4,5,6

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3 years ago

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klemol [59]

(4,4)
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If x is 4, what is:<br> x + 5<br><br><br> 3x:

kirill [66]

Answer:

1) x+5

(4)+5 =

2) 3x

3(4)

Step-by-step explanation:

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2 years ago

Mary had 60$ and spent 3/4 on a coat. plus she brought a skirt with 1/2 she had left . how much do she have left?

evablogger [386]

3/4 of $60 = $45 for the coat
60 - 45 = $15 left
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15 - 7.50 = $7.50 left

5 0

2 years ago

The length of time needed to complete a certain test is normally distributed with mean 46 minutes and standard deviation 6 minut

madam [21]

Answer:

0.0668 or 6.68%

Step-by-step explanation:

Mean time (μ)= 46 minutes

Standard deviation (σ) = 6 minutes

The z-score for any given time X is determined by:

$z=\frac{X-\mu}{\sigma}$

For X = 37:

$z=\frac{37-46}{6}\\ z=-1.5$

A z-score of -1.5 corresponds to the 6.68th percentile of a normal distribution. The probability that it will take less than 37 minutes to complete the test is

$P(X\leq 37) = 0.0668=6.68\%$

The probability is 0.0668 or 6.68%

3 0

3 years ago