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3 years ago

PLEASE TELL ME IF YOU DO I WILL GIVE YOU THESE POINTS IF YOU DON'T I WILL HUNT YOU DOWN WITH THE MODERATOR Thank you!

2 answers:

8 0

1) This is visible in last part of the question,
When daughter = 24
& Mom = 48

Then, 24 * 2 = 48

2) Peter = 35
Son = 10

35-x = 6(10-x)
35-x = 60-6x
6x - x = 60 - 35
5x = 25
x = 25/5
x = 5

So, 5 years ago is the answer.

Hope this helps!

ArbitrLikvidat [17]3 years ago

3 0

The daughter will be 24 and the mother would be 48 because 24*2=48.
and are there any answer for the second question

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Making handcrafted pottery usually takes two major steps:wheel throwing and firing. The time of wheel throwing and thetime of fi

levacccp [35]

Answer:

a) $P(R$

And we can find this probability using the normal standard table or excel and we got:

$P(z$

b) $P(R>110)=P(\frac{R-\mu}{\sigma}>\frac{110-\mu}{\sigma})=P(Z>\frac{110-100}{3.606})=P(Z>2.774)$

And we can find this probability using the complement rule and the normal standard table or excel and we got:

$P(z>2.774)=1-P(Z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Part a

Let X the random variable that represent the time for the step 1 and Y the time for the step 2, we define the random variable R= X+Y for the total time and the distribution for R assuming independence between X and Y is:

$R \sim N(40+60 = 100,\sqrt{2^2 +3^2}= 3.606 s)$

Where $\mu=65.5$ and $\sigma=2.6$

We are interested on this probability

$P(R$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{R-\mu}{\sigma}$

If we apply this formula to our probability we got this:

$P(R$

And we can find this probability using the normal standard table or excel and we got:

$P(z$

Part b

$P(R>110)=P(\frac{R-\mu}{\sigma}>\frac{110-\mu}{\sigma})=P(Z>\frac{110-100}{3.606})=P(Z>2.774)$

And we can find this probability using the complement rule and the normal standard table or excel and we got:

$P(z>2.774)=1-P(Z$

8 0

3 years ago

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Chistopher is 20 years younger than ishaan. Ishaan and chistopher first met two years ago. Fourteen years ago, ishaan was 3 time

lisabon 2012 [21]

Answer:

Ishaan is 49 years old.

Step-by-step explanation:

Let the present age of Christopher be 'C'.

Let the present age of Ishaan be 'I'.

From the given data, we can form equations which will help us solve the problem.

Christopher is 20 years younger than Ishaan. This means:

C = I - 20 . . . (1)

Fourteen years ago, Ishaan would have been (I -14) years old and Christopher (C - 14) years old.

From the data, I - 14 = 3(C - 14) . . . (2)

Substituting the value of C in Equation 2, we get:

I - 14 = 3(I - 20 - 14)

⇒ I - 14 = 3(I - 34)

⇒ I - 14 = 3I - 112

⇒ 2I = 112 + 14 = 98

⇒ I = 49

So, Ishaan is 49 years old.

4 0

3 years ago

What is 4 times 31 in distributive property

Aleksandr [31]

Answer:

4(30 +1)= 4(30) + 4(1)

Step-by-step explanation:

The property states a(b+c)= ab+ac.

30 and 1 equals 31, then you just plug the two numbers into the equation.

4 0

3 years ago

I will thank your mom

Dahasolnce [82]

Factor dem groups

find greatest common factor
24=2*2*2*3
40=2*2*2*5

common is 2*2*2=8

answer is 8 groups

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2 years ago

What is the range of the function represented by these ordered pairs?

Svetlanka [38]

The range will be all ur y values...just as the domain is all the x values

so ur range is {5,6 }...notice that even though they repeat, u only have to list them once

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2 years ago

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