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pshichka [43]
3 years ago
12

It took James 5 h to paint an 8 ft by 24 ft wall. At this rate, how long would it

Mathematics
1 answer:
Law Incorporation [45]3 years ago
7 0

Answer:

7 hours and 30 mins.

Step-by-step explanation:

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10 more than a number divided by -8
Effectus [21]

Answer:

6X8=48 10 more is 58

Step-by-step explanation:

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2 years ago
Please answer and its math ​
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one correct equation would be 2x=28 to depict the amount of money earned and then you would do 28/3 to find out the amount of money they each have after splitting the money they earned.

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3 years ago
The equation of the line WX is 2X plus Y equals -5 what is the equation of a line perpendicular to line WX in slope intercept fo
tensa zangetsu [6.8K]

Answer:

y = \frac{1}{2}x - \frac{3}{2}

Step-by-step explanation:

The equation of the line WX is, 2x + y = - 5

⇒ y = - 2x - 5 .......... (1)

This equation is in slope-intercept form and the slope is - 2 and the y-intercept is - 5.

Now, if a line perpendicular to equation (1) having slope m then, m × (- 2) = - 1

⇒ m =  \frac{1}{2}

{Since the product of slopes of two mutually perpendicular straight line is - 1}

Therefore, the equation of the perpendicular line is

y = \frac{1}{2}x + c, where c is a constant and we have to find it.

This above line passes through the point (-1,-2) and hence

- 2 = \frac{1}{2}(- 1) + c

⇒ c = - \frac{3}{2}

Therefore, the equation of the line will be y = \frac{1}{2}x - \frac{3}{2} (Answer)

4 0
3 years ago
Alex earn 12% Commission on any of her monthly sales over $5,000 for sales for May were $6,750 how much commission did Alex earn
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you're question is complicated

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
The scores on a psychology exam were normally distributed with a mean of 60 and a standard deviation of 10 . A failing grade on
tensa zangetsu [6.8K]

Answer:

The cutoff for a failing score was 40,

Approximately 2.3% of the students failed. ​

Step-by-step explanation:

Given,

Mean, \mu=60

Standard deviation, \sigma=10

Let x represents the cutoff for a failing score,

Thus, according to the question,

\frac{x-\mu}{\sigma}=-2

\frac{x-60}{10}=-2

x-60=-20

x=-20+60

x=40

Thus, the cutoff for a failing score is 40,

∵ P(<-2) = 0.02275 = 2.275 % ≈ 2.3 %

Hence, Approximately 2.3 % of the students failed. ​

7 0
3 years ago
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