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ehidna [41]
3 years ago
10

When I double my number, add three, subtract my number, and subtract one, I get my number plus two.

Mathematics
1 answer:
Umnica [9.8K]3 years ago
8 0

Answer:1=1

Step-by-step explanation:Let your no.= x

double the number=2x

add 4 = 2x+4

subtract same number=2x+4-x

subtract 3=2x+4-x-3

I get my number plus 1=x+1

so equation we get

2x+4-x-3=x+1

x+1=x+1

x=x

it means  x is equal to all real number

So your number can be any real number

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Answer:

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Alternate Hypothesis, H_A : \sigma > 7

The parameter that is being tested here is the population standard deviation (\sigma). So, the null hypothesis states that the population standard deviation is equal to 7 while on the other hand, the alternate hypothesis states that the population standard deviation is greater than 7.

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4 0
3 years ago
The average of four numbers is 38, and the average of the first two numbers is 42, and the average of the last three numbers is
diamong [38]

Answer:

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Step-by-step explanation:

let the numbers be a+b+c+d.

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I hope this helps.

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