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4 years ago

The answer is 4 you just have to figure out what x is and fill that in and whatever that is it should give u the answer as 4

Mathematics

1 answer:

Marat540 [252]4 years ago

5 0

Hello. 10x-3-2x=4 ; 10x-2x=4+3 ; 8x=7 ; x=7/8. I hope to have helped you

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Please answer 1/8 - 1/4 (3 - 1/2) + 2/3 And 2/9 - 1/6 (8- 2/3) + 1/2

Neko [114]

Answer:

1/6, - 1/2_____________

6 0

3 years ago

B. There are 270 deer on a reservation. The deer population is decreasing at a rate of 3.2% per year.

Naddika [18.5K]

Answer:

i need points sorry

Step-by-step explanation:

7 0

3 years ago

Niu has decorated x cards. He started with 24 stickers, and he used 4 stickers per card.

snow_lady [41]

we are given

total number of stickers =24

stickers per cards =4

We are given

number of cards =x

so, we can use formula

number of cards = ( total number of stickers)/(stickers per cards)

we can plug values

$x=\frac{24}{4}$

$x=6$

so, total number of cards is 6...........Answer

8 0

4 years ago

Read 2 more answers

Bottom left Angle: Top Angle: Bottom right Angle:

Arturiano [62]

Angles in a triangle always add up to 180 degrees

Here, we add up all the angles given to equal it to 180 degrees:

X + X + 10 + X + 5 = 180

Collect like terms -> 3X + 10 + 5 = 180

Add the whole numbers -> 3X + 15 = 180

Take 15 from to the other side (then make it negative) to isolate the X:
3X = 180 - 15

The subtract -> 3X = 165

Take 3 over to the other side (and it it should divide 165) and isolate the X -> X = 165/3

Finally, X = 55

Now wherever you see X in the triangle, replace it with 55.

With that, the top angle = 55 + 10 = 65 degrees
The bottom left angle = 55 + 5 = 60 degrees
The bottom right angle = 55 degrees

8 0

3 years ago

A company is manufacturing highway emergency ares. Such ares are sup- posed to burn for an average of 20 minutes. Every hour a s

kramer

Complete question :

A company is manufacturing highway emergency ares. Such ares are sup- posed to burn for an average of 20 minutes. Every hour a sample of ares is collected, and their average burn time is determined. If the manufacturing process is working cor- rectly, there is a 68% chance that the average burn time of the sample will be between 14 minutes and 26 minutes. The quality engineer in charge of the process believes that if 4 of 5 samples fall outside these bounds then this is a signal that the process might not be performing as expected. Each morning the sampling begins anew. Let X denote the number of samples drawn in order to obtain the fourth sample whose average value is outside of the above bounds. Find the probability that for a given morning X = 5, hence there seems to be a problem right away.

Answer:

0.0285

Step-by-step explanation:

We are to find the probability for a given morning that X = 5

From the question, we could see that there is a 68% chance that the average burn time of the sample will be between 14 minutes and 26 minutes and the success of the process is obtained after the fourth or fifth sample.

Thus, r = 4; q = 0.68

The probability average burn time falls outside p will be:

p = 1 - 0.68 = 0.32

The random variable X follows negative binomial distribution.

Therefore,

$f(x) = \left[\begin{array}{ccc}x-1\\r-1\end{array}\right] (1-p)^x^-^r) (p)^r$

Where, x = 5

r = 4

p = 0.32

Substituting figures in the equation, we have:

$P(x=5) = \left[\begin{array}{ccc}5-1\\4-1\end{array}\right] (1-0.32)^5^-^4 (0.32)^4$

$P(x=5) = \left[\begin{array}{ccc}4\\3\end{array}\right] (0.68)(0.01048576)$

= 0.0285

The probability that for a given morning X = 5 is 0.0285

4 0

3 years ago