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3 years ago

The length of a rectangle is 3 more than the width. If the perimeter of the rectangle is 16 units, find the

Mathematics

1 answer:

pentagon [3]3 years ago

7 0

L = 3x width
2L + 2W = 16 units
2(3W) + 2W = 16 units
8W = 16 units
Width = 2 units

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Ms.Bass gave her class 12 minuets to read. Carrie read 5 1/2 pages in that time. At what rate, in pages per hour, did Carrie rea

Talja [164]

So, we have

5.5/12

Convert to a denominator of 60, since there are 60 mins in an hour

60/12= 5

Multiply numerator and denominator by 5

5*5.5= 27.5

12*5= 60

So our answer is 27.5/60 or 27.5 pages an hour

I hope this helps :)

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3 years ago

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Law Incorporation [45]

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Answer:

point (-12, -5)
slope 1/2

Step-by-step explanation:

Compare the given equation to ...

y -k = m(x -h) . . . . . line with slope m through point (h, k)

You find that k = -5, m = 1/2, h = -12.

The point is (h, k) = (-12, 5). The slope is m = 1/2.

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3 years ago

If you ask the first 50 females who enter a restaurant to complete a survey about their experience, who is the sample?

Anettt [7]

Answer:

the first girl

Step-by-step explanation:

because the first girl to take the survey is a sample but the rest that follows are just extras(can i get brainliest pls)

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3 years ago

Read 2 more answers

What is 9 to the 3 halfs power

timurjin [86]

9 to the 3 half power is 27. Hope that's what your wanting to know.

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3 years ago

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Help help I don’t really get this???

insens350 [35]

Answer:

Question 4: $y=\displaystyle -\frac{4}{5}x$

Question 5: $y=-5x-3$

Step-by-step explanation:

Hi there!

Linear equations are typically organized in slope-intercept form: $y=mx+b$ where m is the slope of the line and b is the y-intercept (the y-coordinate of the point where the line crosses the y-axis).

Question 4

1) Determine the slope (m)

$\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$ where two points that pass through the line are $(x_1,y_1)$ and $(x_2,y_2)$

In the graph, two easy-to-identify points on the line are (-5,4) and (5,-4). Plug these into the equation:

$\displaystyle m=\frac{-4-4}{5-(-5)}\\\\\displaystyle m=\frac{-4-4}{5+5}\\\\\displaystyle m=\frac{-8}{10}\\\\\displaystyle m=-\frac{4}{5}$

Therefore, the slope of the line is $\displaystyle -\frac{4}{5}$ . Plug this into $y=mx+b$ as the slope (m):

$y=\displaystyle -\frac{4}{5}x+b$

2) Determine the y-intercept (b)

On the graph, we can see that the line crosses the y-axis when y is 0. Therefore, the y-intercept (b) is 0. Plug this into $y=\displaystyle -\frac{4}{5}x+b$ :

$y=\displaystyle -\frac{4}{5}x+0\\\\y=\displaystyle -\frac{4}{5}x$

Question 5

1) Determine the slope (m)

$\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Two easy-to-identify points are (-1,2) and (0,-3). Plug these into the equation:

$\displaystyle m=\frac{-3-2}{0-(-1)}\\\\\displaystyle m=\frac{-3-2}{0+1}\\\\\displaystyle m=\frac{-5}{1}\\\\m=-5$

Therefore, the slope is -5. Plug this into $y=mx+b$ :

$y=-5x+b$

2) Determine the y-intercept (b)

On the graph, we can see that the line crosses the y-axis at the point (0,-3). The y-coordinate of this point is -3. Therefore, the y-intercept (b) is -3. Plug this into $y=-5x+b$ :

$y=-5x+(-3)\\y=-5x-3$

I hope this helps!

8 0

2 years ago