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9966 [12]
3 years ago
10

Henry buys an item for $4.23. He gives the cashier a $20 bill. How much money should Henry get back?

Mathematics
1 answer:
N76 [4]3 years ago
7 0

Answer:

Henry will get $15.77 back.

Step-by-step explanation:

20 - 4.23 = 15.77

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Match each equation with a solution from the list of values.
vova2212 [387]

Answer:

1. a=2.3

2. b=2.6

3. c=2.3

4.d=2.6

5. e=40

6. f=1/6

7. g=85

Step-by-step explanation:

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An automated egg carton loader has a 1% probability of cracking an egg, and a customer will complain if more than one egg per do
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Answer:

a) Binomial distribution B(n=12,p=0.01)

b) P=0.007

c) P=0.999924

d) P=0.366

Step-by-step explanation:

a) The distribution of cracked eggs per dozen should be a binomial distribution B(12,0.01), as it can model 12 independent events.

b) To calculate the probability of having a carton of dozen eggs with more than one cracked egg, we will first calculate the probabilities of having zero or one cracked egg.

P(k=0)=\binom{12}{0}p^0(1-p)^{12}=1*1*0.99^{12}=1*0.886=0.886\\\\P(k=1)=\binom{12}{1}p^1(1-p)^{11}=12*0.01*0.99^{11}=12*0.01*0.895=0.107

Then,

P(k>1)=1-(P(k=0)+P(k=1))=1-(0.886+0.107)=1-0.993=0.007

c) In this case, the distribution is B(1200,0.01)

P(k=0)=\binom{1200}{0}p^0(1-p)^{12}=1*1*0.99^{1200}=1* 0.000006 = 0.000006 \\\\ P(k=1)=\binom{1200}{1}p^1(1-p)^{1199}=1200*0.01*0.99^{1199}=1200*0.01* 0.000006 \\\\P(k=1)= 0.00007\\\\\\P(k\leq1)=0.000006+0.000070=0.000076\\\\\\P(k>1)=1-P(k\leq 1)=1-0.000076=0.999924

d) In this case, the distribution is B(100,0.01)

We can calculate this probability as the probability of having 0 cracked eggs in a batch of 100 eggs.

P(k=0)=\binom{100}{0}p^0(1-p)^{100}=0.99^{100}=0.366

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3 years ago
What is the value of the expression below when y=8 2y+7
Gala2k [10]

Answer:

23

Step-by-step explanation:

if y=8 then you plug it inti the equation

2(8)+7

16+7=23

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rebekah's baby brother wights 7.71 pounds. Her newborn kitten weights 0.24 pound. How much more does tebekah's baby brother weig
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Rebekah's baby weighs 7.47 more than her kitten
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I don't understand this, please help ​
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Answer:

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