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Readme [11.4K]
3 years ago
5

marion is twice as old as judy . six years ago marion was three times as old as judy was then . find the age of each girl now

Mathematics
1 answer:
fomenos3 years ago
4 0

Answer:

we mutiply marion age because it is twice

i thick marion is old then judy

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9-6m=3m it’s due at 12
valina [46]

Answer:

m=1

Step-by-step explanation:

add 6 to both sides, 9=9m

divide 9 on both sides, m=1

8 0
3 years ago
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Can it be concluded that if there is a 50% chance of contracting a communicable disease through contact with an infected person,
crimeas [40]

Answer:

No it cannot be concluded.

Step-by-step explanation:

The probability of getting the disease in the first attempt is 50%

The probability of getting the disease in the second attempt is 50%

Thus the probability of getting the disease in either of the turns is 50%+50%=100% (which may seem to be true)

BUT

The probability of not  getting the disease in the first attempt is 50%

The probability of not getting the disease in the second attempt is 50%

Thus the probability of not getting the disease in either of the turns is 50%+50%=100% (which is also true for this case)

Thus the probability of getting the disease in either of the 2 contacts is still 50%

4 0
3 years ago
Is x^2 + 1 a polynomial
ki77a [65]

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Step-by-step explanation:

3 0
3 years ago
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slamgirl [31]

Answer:

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5 0
3 years ago
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A randomized study compared the effectiveness of two mosquito repellents. The treatment group using Spray A reported a mean of 3
BlackZzzverrR [31]

Answer:

The difference of the means is not significant because the re-randomizations show that it is within the range of what could happen by chance.​

Step-by-step explanation:

Given that:

The treatment group using Spray A reported a mean of 3.5 mosquito bites.

The treatment group using Spray B reported a mean of 5.6 mosquito bites.

After the data are  re-randomized; the differences of the means are shown in the dot plot. The dot plot is attached in the file below;

The best conclusion that can be make based on the data from the dot plot is :

The difference of the means is not significant because the re-randomizations show that it is within the range of what could happen by chance.​

5 0
3 years ago
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