Sheldon is 16 4/7 years old, while Leonard is 21 1/7.
We are given the correlations between two numbers in this sort of query, specifically the data when their ages are contrasted now and in the future.
Let x represent Leonard's age.
We can infer Sheldon's age from the question as being 4x - 68.
The following equation results from the question:
x + 12 = 2((4x - 68) + 12) - 24
Fix x,
=> x + 12 = 2(4x - 68 + 12) - 24
x + 12 = 2(4x - 56) - 24
x + 12 = 8x - 112 - 24
x - 8x = -136 - 12
-7x = - 148
x = 148 / 7 or 21 1/7
Now, simply multiply 4x by 68 to get Sheldon's age.
=> 4x - 68
=> 4 * 148/7 - 68
=> 592/7 - 68
=> 116/7 or 16 4/7
Leonard is therefore 21 1/7 years old, while Sheldon is 16 4/7.
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Answer:
1...-
Step-by-step explanation:
Answer:
The null hypothesis is
Alternate hypothesis is
Step-by-step explanation:
Consider the provided information.
A study found that, in 2005, 12.5% of U.S. workers belonged to unions.
Suppose a sample of 400 U.S. workers is collected in 2006 to determine whether union efforts to organize have increased union membership.
Here we just need to formulate the hypotheses.
It is given that:
n=400 and 12.5% of U.S. workers belonged to unions.
12.5% can be written as:
12.5/100=0.125
The Null hypothesis: The workers belonging to unions ≤ 0.125
Alternate hypothesis: The workers belonging to unions is > 0.125
This can be written as:
So, the null hypothesis is
Alternate hypothesis is
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