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Gennadij [26K]
3 years ago
7

What is 127/100 as a decimal

Mathematics
2 answers:
Lera25 [3.4K]3 years ago
5 0

Answer:

<u>1.27</u>

Step-by-step explanation:

To write any fraction as a decimal, you just have to divide the numerator by the denominator. As a variable equation, I have written it below

<em>n </em>/ <em>d</em>

Where <em>n </em>= numerator    and <em>d</em> <em>= </em>denominator

wlad13 [49]3 years ago
4 0

Answer:

1.27

Step-by-step explanation:

To write 127/100 as a decimal you have to divide numerator by the denominator of the fraction.

We divide now 127 by 100 what we write down as 127/100 and we get 1.27

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A store selling newspapers orders only n = 4 of a certain newspaper because the manager does not get many calls for that publica
umka2103 [35]

Answer:

a) The expected value is 2.680642

b) The minimun number of newspapers the manager should order is 6.

Step-by-step explanation:

a) Lets call X the demanded amount of newspapers demanded, and Y the amount of newspapers sold. Note that 4 newspapers are sold when at least four newspaper are demanded, but it can be <em>more</em> than that.

X is a random variable of Poisson distribution with mean \mu = 3 , and Y is a random variable with range {0, 1, 2, 3, 4}, with the following values

  • PY(k) = PX(k) = ε^(-3)*(3^k)/k! for k in {0,1,2,3}
  • PY(4) = 1 -PX(0) - PX(1) - PX(2) - PX (3)

we obtain:

PY(0) = ε^(-3) = 0.04978..

PY(1) = ε^(-3)*3^1/1! = 3*ε^(-3) = 0.14936

PY(2) = ε^(-3)*3^2/2! = 4.5*ε^(-3) = 0.22404

PY(3) = ε^(-3)*3^3/3! = 4.5*ε^(-3) = 0.22404

PY(4) = 1- (ε^(-3)*(1+3+4.5+4.5)) = 0.352768

E(Y) = 0*PY(0)+1*PY(1)+2*PY(2)+3*PY(3)+4*PY(4) =  0.14936 + 2*0.22404 + 3*0.22404+4*0.352768 = 2.680642

The store is <em>expected</em> to sell 2.680642 newspapers

b) The minimun number can be obtained by applying the cummulative distribution function of X until it reaches a value higher than 0.95. If we order that many newspapers, the probability to have a number of requests not higher than that value is more 0.95, therefore the probability to have more than that amount will be less than 0.05

we know that FX(3) = PX(0)+PX(1)+PX(2)+PX(3) = 0.04978+0.14936+0.22404+0.22404 = 0.647231

FX(4) = FX(3) + PX(4) = 0.647231+ε^(-3)*3^4/4! = 0.815262

FX(5) = 0.815262+ε^(-3)*3^5/5! = 0.91608

FX(6) = 0.91608+ε^(-3)*3^6/6! = 0.966489

So, if we ask for 6 newspapers, the probability of receiving at least 6 calls is 0.966489, and the probability to receive more calls than available newspapers will be less than 0.05.

I hope this helped you!

8 0
3 years ago
The sum of three consecutive even numbers is 144. What is the smallest of the three numbers ?​
ikadub [295]

Answer:

2

Step-by-step explanation:

132+10+2=144

3 0
3 years ago
Joan saved $2.34 on an item that is usually $7.89. What percent did she save
xxTIMURxx [149]
(2.34/ 7.89) times 100 = ˜29.65%
5 0
3 years ago
What is the value of x in the diagram?
Mamont248 [21]

Answer:

x+55=2x-15 [being corresponding angle

55-15=2x-x

40=x

4 0
3 years ago
Read 2 more answers
Draw the figure with their measurements and find their volume
babunello [35]

1) Volume = L × W × H = 8 × 3 × 5 = <u>120 m³</u>

2) Volume = s³ = 17³ = 17 × 17 × 17 = <u>4913 cm³</u>

3) Volume = s³ = 30³ = 30 × 30 × 30 = <u>27000 cm³</u>

4) Volume = L × W × H = 13 × 5 × 7 = <u>455 cm³</u>

5) Volume = s³ = 15³ = 15 × 15 × 15 = <u>3375 cm³</u>

<u />

Formula's applied:

(a) Volume of rectangle: Length × Width × Height

(b) Volume of Cube: (side)³

5 0
2 years ago
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