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Ksenya-84 [330]
4 years ago
9

I need help with this problem I cant figure it out for some reason

Mathematics
1 answer:
Salsk061 [2.6K]4 years ago
4 0
8 4/8 + 4 5/8 = 12 9/8 = 13 1/8

The answer is 13 1/8
You might be interested in
A university administrator was interested in determining if there was a difference in the distance students travel to get from c
eduard

Answer:

1) Fail to reject the Null hypothesis

2) We do not have sufficient evidence to support the claim that the mean distance students traveled to school from their current residence was different for males and females.

Step-by-step explanation:

A university administrator wants to test if there is a difference between the distance men and women travel to class from their current residence. So, the hypothesis would be:

H_{o}: \mu_{F}-\mu_{M}=0\\\\ H_{a}: \mu_{F}-\mu_{M}\neq 0

The results of his tests are:

t-value = -1.05

p-value = 0.305

Degrees of freedom = df = 21

Based on this data we need to draw a conclusion about test. The significance level is not given, but the normally used levels of significance are 0.001, 0.005, 0.01 and 0.05

The rule of the thumb is:

  • If p-value is equal to or less than the significance level, then we reject the null hypothesis
  • If p-value is greater than the significance level, we fail to reject the null hypothesis.

No matter which significance level is used from the above mentioned significance levels, p-value will always be larger than it. Therefore, we fail to reject the null hypothesis.

Conclusion:

We do not have sufficient evidence to support the claim that the mean distance students traveled to school from their current residence was different for males and females.

7 0
4 years ago
Trains Two trains, Train A and Train B. weigh a total of 196 tons. Train A is heavier than Train B. The
aleksklad [387]

Answer:

Train A = 128

Train B = 68

Step-by-step explanation:

We can set up a system of equations for this problem

Let A = # of tons of Train A

Let B = # of tons of Train B

A + B = 196

A = B + 60

Now, we plug in A for the first equation, using substitution

(B+60) + B = 196

2B + 60 = 196

Subtract 60 from both sides

2B = 136

Divide both sides by 2

B = 68

Plug in 68 for B in the 2nd equation

A = 68 + 60

A = 128

Checking work: 128 + 68 = 196 :D hope this helped

5 0
2 years ago
Please help me!! Just help me solve
Kruka [31]
The solution for the system of equations are:
x =  \frac{7}{5} \\ y =  \frac{11}{5}
Attached is the graph of lines y=3x-2 and y=-2x+5.

4 0
3 years ago
Joe likes to go fishing. He knows that the stronger the fishing line is, the larger the fish that he can catch.
Trava [24]
The answer is 
<span>B.

The size of the fish Joe can catch is a function of the strength of his fishing line.
</span>
6 0
3 years ago
On friday taylor babysat for 4 hours and was paid $60. on saturday she babysat for 2 hours and was paid $30. what is the rate ta
Goshia [24]

Answer:

15 dollars per hour

Step-by-step explanation:

She is constantly charging 15 per hour.

3 0
3 years ago
Read 2 more answers
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