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3 years ago

11

of the students in ms. hillers class, 27% have blonde hair, 0.33 have black hair and 2/5 have brown hair. which hair color is mo

st common?

1 answer:

aleksandrvk [35]3 years ago

6 0

Answer:

Brown hair is the most common

Step-by-step explanation: 0.33 as a percent is 33% and 2/5 as a percent is 40% and 40 is the most the 40% wins

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I really need help on this question.!

zalisa [80]

Answer:

$60 + 55 + x + 20 = 180 \\ x + 135 = 180 \\ x = 180 - 135 \\ x = 45$

5 0

3 years ago

Baileys rectangular dog pen for his Irish setter must have an area of 300 square feet. Also, the length must be 10 feet longer t

Naily [24]

Area of rectangle = length × width
300 = (x+10) × x
300 = 10x + x^2
Now we have the equation y=x^2 + 10x - 300
We can factor this equation to get our zeroes, which are:
-5(1+sqrt(13)),
5(sqrt(13)-1)

We only use the positive zero because we can't have a negative dimension.

Your width would be:
5(sqrt(13)-1)

Your length would be:
5(sqrt(13)-1) + 10

7 0

4 years ago

What is the slope of a line perpendicular to the line whose equation is 15x+18y=270. Fully simplify your answer.

In-s [12.5K]

Answer:

6/5

Step by step explanation:

Here we are provided with a equation which is ,

$\longrightarrow 15x + 18y = 270$

And we are interested in finding the slope of the line which is perpendicular to the given line. We may rewrite the equation as ,

$\longrightarrow 18y = -15x +270\\$

$\longrightarrow y =\dfrac{-15x+270}{18}\\$

$\longrightarrow y =\dfrac{-15}{18}x +\dfrac{270}{8}\\$

$\longrightarrow y =\dfrac{-5}{6}x +\dfrac{135}{4}$

Recall the slope intercept form of the line which is <u>y</u><u> </u><u>=</u><u> </u><u>mx</u><u> </u><u>+</u><u> </u><u>c</u><u> </u>.On comparing to which we get ,

$\longrightarrow m =\dfrac{-5}{6}$

Again , recall that product of slopes of two perpendicular lines is -1. So that ,

$\longrightarrow m_{\perp} =-\bigg(\dfrac{1}{m}\bigg)$

Hence ,

$\longrightarrow\underline{\underline{ m_{\perp}= \dfrac{6}{5}}}$

And we are done !

6 0

3 years ago

Read 2 more answers

If your 13 - 17 put snap below and then answer this <br><br> what is 2x ( 2x + x ) =16

Lana71 [14]

Answer:

x = ± <u>-2</u> $\sqrt{6}$ <u>_</u>

3

Step-by-step explanation:

Combine Like Terms - 2x(3x) = 16

Calculate - 6x² = 16

Divide - x² = 8/3

Simplify - x = ± <u>-2</u> $\sqrt{6}$ <u>_</u>

3

3 0

3 years ago

Find the volume of the sphere .<br> (Geometry)

asambeis [7]

Answer:

V = 32/3 pi

Step-by-step explanation:

The volume of a sphere is given by

V= 4/3 pi r^3

We know the radius is 2

V = 4/3 pi (2)^3

V = 4/3 pi (8)

V = 32/3 pi

6 0

3 years ago