3 years ago

PLS help i will give brainliest

Mathematics

1 answer:

zhuklara [117]3 years ago

8 0

Answer:

I don't understand a.

b.SQR, RQS

c. Q

Step-by-step explanation:

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3. Two-thirds of a number plus 4 is 76. What is the number?<br>

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Answer:

108

Step-by-step explanation:

2/3x+4=76

2/3x=72

x=72*3/2

x=108

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3 years ago

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Diane made $128 for 8 hours of work at the same rate how many hours would she have to work to make $192

Allushta [10]

Answer:

12 hours of work

Step-by-step explanation:

$128 ---------> 8 hours of work

$1 -------------> (8/128 ) hours of work

$192 ----------> (8/128 ) x 192 = 12 hours of work

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4 years ago

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Suppose that you and a friend are playing cards and decide to make a bet. If you draw two red cards in succession from a standar

N76 [4]

Answer:

E=$19.307

Step-by-step explanation:

Total number of cards = 52

If you win then you will get $50

If you lose then you will give him $20

Therefore the probability

$P(first\ card\ is\ face\ card)=\dfrac{12}{52}$

$P(Second\ card\ is\ face\ card)=\dfrac{11}{51}$

$P(Third\ card\ is\ face\ card)=\dfrac{10}{50}$

Thus the probability for all the three cards are face card

$P=\dfrac{12}{52}\times \dfrac{11}{51}\times \dfrac{10}{50}$

P=0.0099

Thus the probability for all the three cards are not face card

P=1-0.0099=0.9901

P=0.9901

Therefore , expected value

$E=20\times 0.9901-50\times 0.0099$

E=$19.307

Therefore the answer will be $19.307.

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The answer is 152.. I think

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I think it is the appraisal so A.

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