2 years ago

3x – 9 = -15 What is X

Mathematics

1 answer:

sergij07 [2.7K]2 years ago

6 0

Answer:

Step-by-step explanation:

3 x 2 - 9=15

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The mathematics department of a college has 6 male professors, 9 female professors, 5 male teaching assistants, and 6 female tea

Hitman42 [59]

Given:

6 male professores

9 female professores

5 male teaching assistants

6 female teaching assistants

Sol:.

$N(A\text{ or B)=N(A)+N(B)-N(A and B)}$

N (professors)

$\begin{gathered} =6+9 \\ =15 \end{gathered}$

N(Male)

$\begin{gathered} =6+5 \\ =11 \end{gathered}$

N(professors and male)

$=6$

N(professors OR male) = N(professors) + N(males) -N(professor OR male)

$\begin{gathered} N(\text{ Professors OR male)=15+11-6} \\ =20 \end{gathered}$

N(People to choose from)

$\begin{gathered} =6+9+5+6 \\ =26 \end{gathered}$

Then probablitiy is:

$\begin{gathered} =\frac{20}{26} \\ =\frac{10}{13} \end{gathered}$

Then the probability is 10/13

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6 months ago

Simplify -3-20 divided by (-2*1) Is the answer 7?

Anna35 [415]

No the answer is -13. Please mark me brainliest!

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3 years ago

Solve: 10 -0.75x < 7 Please and thank you

Anastaziya [24]

Answer:

The answer is x<4

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2 years ago

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Find the equation in slope intercept form (2,5)(0,5)

Dima020 [189]

Answer:

y = 5

Step-by-step explanation:

slope = Δy / Δx = (5 - 5) / (0 - 2) = 0

y = Ax + B

y = 0x + 5

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2 years ago

A piece of cloth costs 200 if the piece was 5m longer and the cost of each metre of cloth was 2 the cost of the piece would have

Lina20 [59]

Answer: 95metres for the length and the original cost is 2.105

Step-by-step explanation:

Let the initial length be x,

So, x+5=200/2

x+5=100

x=95

Note since the total price is the same and the original length is 95metres.

Therefore, the original cost per metre is

200/95=2.105

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2 years ago