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Rzqust [24]
4 years ago
13

Janet can do a job in three hours while Gary can do the same job in two hours. If Janet works for an hour before Gary be in help

ing her how long will it take them to finish the job together?
Mathematics
2 answers:
yKpoI14uk [10]4 years ago
6 0

Janet = 1/3

Gary = 1/2

(1/3) + (1/2) = 5/6

Let x = time they both can do the job together

(1/2) + (5/6)x = 1

Solve for x to find your answer.

Oxana [17]4 years ago
6 0

Answer:

Janet = 1/3

Gary = 1/2

(1/3) + (1/2) = 5/6

Let x = time they both can do the job together

(1/2) + (5/6)x = 1

Solve for x to find your answer.

Step-by-step explanation:

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the answer would be 13/8

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Is 2/3 a rational number?
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Yes

Step-by-step explanation:

A number that can be written as a ratio of two integers, of which denominator is non-zero, is called a rational number.

Therefore 2/3 is a rational number.

5 0
4 years ago
Ramon has applied to MBA programs at both Harvard and Stanford. He thinks the probability that Harvard will admit him is 0.5, th
ivolga24 [154]

Answer:

(a) The Venn diagram is attached below.

(b) The probability that neither university admits Ramon is 0.20.

(c) The probability that Ramon gets into Stanford but not Harvard 0.30.

Step-by-step explanation:

Let's denote the events as follows:

<em>H</em> = Ramon gets admitted to Harvard

<em>S</em> = Ramon gets admitted to Stanford.

The information provided is:

P (H) = 0.50

P (S) = 0.50

P (H ∩ S) = 0.20

(a)

The Venn diagram is attached below.

(b)

Compute the probability that Ramon gets admitted in neither Harvard nor Stanford as follows:

P(H^{c}\cup S^{c})=1-P(H\cup S) \\= 1 - [P(H)+P(S)-P(H\cap S)]\\=1-[0.50+0.50-0.20]\\=1-0.80\\=0.20

Thus, the probability that neither university admits Ramon is 0.20.

(c)

Compute the probability that Ramon gets admitted in Stanford but not in Harvard as follows:

P(H^{c}\cup S)=P(S)-P(H\cap S) \\= 0.50-0.20\\=0.30

Thus, the probability that Ramon gets into Stanford but not Harvard 0.30.

7 0
3 years ago
Avid with 4 red cards, 2 brown cards, and 6 blue cards. A card is chosen at random from the box. What is the probability that it
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Answer:

the answer is blue

Step-by-step explanation:

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3 years ago
PLEASE HELP ASAAAP!!!!!!!q
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Answer:

A:a , s:soon ,A : as,P: possible

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3 years ago
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