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Lubov Fominskaja [6]

3 years ago

7

1800 people attended the National Day dinner in a certain constituency Given that 35.5 of them were. men, 40 % of them were wome

n and the rest were children, find the number of children who attended the dinner

1 answer:

gavmur [86]3 years ago

7 0

children

25.5 %

so 25.5% of 100

495

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A local hamburger shop sold a combined total of 557 hamburgers and cheeseburgers on Friday. There were 57 more cheeseburgers sol

vagabundo [1.1K]

Answer:

Equation: 557=2x+57

Let x=hamburgers sold

Solution: 250 hamburgers

Step-by-step explanation:

1. Subtract 57 from both sides of the equation

2. Divide both sides of the equation by 2

3. x=250

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3 years ago

Find the value of 4^2 + 6^2

seraphim [82]

Answer:

52

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

Can somebody please help?

kari74 [83]

Step-by-step explanation:

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3 years ago

) The manager of a local Gap store estimates that on average the probability of a customer entering the store and will purchase

xeze [42]

Answer: 1. 0.0256

2. 0.4096

Step-by-step explanation:

Binomial probability formula , to find the probability of getting x successes:

$P(x)=^nC_xp^x(1-p)^{n-x}$ , where n= Total number of trials

p= Probability of getting success in each trial.

Let x be the number of customers will make purchase.

As per given , we have

p= 0.20

n= 4

1. The probability that 3 of the next 4 customers will make a purchase will be:-

$P(x=3)=^4C_3(0.20)^3(1-0.20)^{4-3}$

$P(x=3)=(4)(0.20)^3(0.80)^{1}\ \ [\because\ ^nC_{n-1}=n]$

$P(x=3)=(4)(0.008)(0.80)=0.0256$

Hence, the probability that 3 of the next 4 customers will make a purchase = 0.0256

2. The probability that none of the next 4 customers will make a purchase will be :

$P(x=0)=^4C_0(0.20)^0(1-0.20)^{4-0}$

$P(x=0)=(1)(0.80)^{4}\ \ [\because\ ^nC_{0}=1]$

$P(x=0)=0.4096$

Hence, the probability that none of the next 4 customers will make a purchase= 0.4096

5 0

3 years ago