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ser-zykov [4K]
3 years ago
6

Hao eats 40 cans of dog food in 31 days how many cans does he need for 6 days

Mathematics
2 answers:
emmasim [6.3K]3 years ago
4 0

40 \div 31 \\ x \times 6
x is what you get when you divide
postnew [5]3 years ago
4 0

40 divided by 31= 1.29

So about 1 1/3 cup per day

1.29 x 6 = 7.74

So about 7 3/4 cans in 6 days

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Arlecino [84]

Answer:    \dfrac{12}{13}

Step-by-step explanation:

Let A = he known the answer then A' = he guess the answer.

B = he answered it correctly

As per given , we have

P(A)=\dfrac{3}{4}\ \ ,\ \ P(A')=\dfrac{1}{4}

P(B|A)=1

P(B|A')=\dfrac{1}{4}

By Bayes theorem , we have

P(A|B)=\dfrac{P(B|A)P(A)}{P(B|A)P(A)+P(B|A')P(A')}\\\\ P(A|B)=\dfrac{1\times\dfrac{3}{4}}{1\times\dfrac{3}{4}+\dfrac{1}{4}\times\dfrac{1}{4}}\\\\= \dfrac{12}{13}

The probability that the student knows the answer given that he answered it correctly is  \dfrac{12}{13} .

6 0
3 years ago
a taxi service charges $2.40 for the first mile of a ride and $1.40 for every additional mile. linda planned to give a $2 tip fo
viktelen [127]

Answer:

5

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4 0
3 years ago
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Answer:

It is a function

Step-by-step explanation:

Domain: (-5, -6, -2, -1, 4)

Range: (2, 6, 8)

each element of the domain maps to one element of the range, so it is a function.

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