Can someone help me solve this

Mathematics

2 answers:

beks73 [17]2 years ago

6 0

28

The factor with 2 is 14 (2x14)
The factor with 7 is 4 (7x4)

Law Incorporation [45]2 years ago

4 0

Answer: 28

Step-by-step explanation: 2x14=28

7x4=28

Both are factors of 28

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One number is 33 times a first number. a third number is 100 more than the first number. if the sum of the three numbers is 3103

kherson [118]

Create some expressions.

1# number: x

2# number: 33x

3# number: 100 + x

this all equals to 310310 when added so

x+33x+(x+100) = 310310

Solve what you know first then rearrange it.

34x + x + 100 = 310310

35x = 310310-100

35x = 310210

x = 310210/35

x = 8863.142857

Substitute the x into the expressions made and you'll find the 2# and 3# number. You've already found the 1# number since it's only x.

7 0

3 years ago

A random sample of 10 employees of a company was selected to estimate the mean one-way commute time for all employees at the com

liberstina [14]

Answer:

The margin of error is of $2.262\frac{6}{\sqrt{10}} = 4.29$

Step-by-step explanation:

We have the standard deviation for the sample. So the T-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 10 - 1 = 9

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 9 degrees of freedom(y-axis) and a confidence level of $1 - \frac{1 - 0.95}{2} = 0.975$ . So we have T = 2.262