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3 years ago

3x = 2х + 50please help

Mathematics

2 answers:

Sphinxa [80]3 years ago

8 0

Answer:

Hole this will help you.

I put instructions too.

Step-by-step explanation:

Can you give me brainlist pwees

Citrus2011 [14]3 years ago

3 0

Answer:

$x = 50$

Step-by-step explanation:

1. $3x = 2x + 50$

2. Minus the x value from the right side and the left slide

3. $(3x - 2x) = (2x - 2x) + 50$

4. $x = 50$

5. To check your answer plug in 50 as a value of x.

6. $3 * 50 = 2 * 50 + 50$

7. $150 = 150$

8. We are correct! So x = 50.

$Thank you Zlovecoding$

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3 0

3 years ago

Read 2 more answers

Assume that different groups of couples use the XSORT method of gender selection and each couple gives birth to one baby. The XS

olganol [36]

Answer:

Mean and Standard deviation for the numbers of girls in groups of 36 births are 18 and 3 respectively.

Step-by-step explanation:

We are given that he X SORT method is designed to increase the likelihood that a baby will be a girl, but assume that the method has no effect, so the probability of a girl is 0.5.

Now consider a group consisting of 36 couples.

The above situation can be represented through binomial distribution;

$P(X=r)=\binom{n}{r} \times p^{r} \times (1-p)^{n-r} ;x=0,1,2,3,.....$

where, n = number of trials (samples) taken = 36 couples

r = number of success

p = probability of success which in our question is probability

of a girl, i.e.; p = 0.5

Let X = Numbers of girls in groups of 36 births

So, X ~ Binom(n = 36, p = 0.5)

Now, mean for the numbers of girls in groups of 36 births is given by;

Mean, E(X) = $n \times p$ = $36 \times 0.5$ = 18

Also, standard deviation for the numbers of girls in groups of 36 births is given by;

Standard deviation, S.D.(X) = $\sqrt{n\times p\times (1-p)}$

= $\sqrt{36\times 0.5\times (1-0.5)}$

= 3

3 0

3 years ago

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RideAnS [48]

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3 years ago

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Arlecino [84]

Answer:

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3 years ago

39.2 is what percent p of 112

madam [21]

39.2 is what percent p of 112

39.2/112

39.2 ÷ 112 = 0.35

Convert to percent:-

0.35 × 100 = 35
35%

3.92 is 35% of 112.

3 0

3 years ago

3x = 2х + 50please help​

3x = 2х + 50please help