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alexgriva [62]
3 years ago
9

Solve the system of linear equations by substitution.

Mathematics
1 answer:
Nataly_w [17]3 years ago
3 0

Answer:

x = 13, y = -3

Step-by-step explanation:

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What is the upper quartile, Q3, of the following data set? 54, 53, 46, 60, 62, 70, 43, 67, 48, 65, 55, 38, 52, 56, 41
scZoUnD [109]
The original data set is 
{<span>54, 53, 46, 60, 62, 70, 43, 67, 48, 65, 55, 38, 52, 56, 41}

Sort the data values from smallest to largest to get
</span><span>{38, 41, 43, 46, 48, 52, 53, 54, 55, 56, 60, 62, 65, 67, 70} 
</span>
Now find the middle most value. This is the value in the 8th slot. The first 7 values are below the median. The 8th value is the median itself. The next 7 values are above the median. 

The value in the 8th slot is 54, so this is the median

Divide the sorted data set into two lists. I'll call them L and U 
L = {<span>38, 41, 43, 46, 48, 52, 53}
U = {</span><span>55, 56, 60, 62, 65, 67, 70}
they each have 7 items. The list L is the lower half of the sorted data and U is the upper half. The split happens at the original median (54).

Q3 will be equal to the median of the list U
The median of U = </span>{<span>55, 56, 60, 62, 65, 67, 70} is 62 since it's the middle most value. 

Therefore, Q3 = 62

Answer: 62</span>
4 0
3 years ago
there are 110 apples in a basket on monday. on wednesday there is 80 apples left in the basket. what percent of apples are remai
vivado [14]

Answer:

the numbers of apples consumed is : 110 - 80 = 30.

percentage of apple consumed is : (30 / 100) * 100=27.27%

remaining numbers of apple =100 - 27.27 = 72.72%...

6 0
3 years ago
In this assignment, you will apply your knowledge of the cardiovascular system as you explore articles related to the heart. You
Nikitich [7]

Answer:

A.1 Exercise

2. Reduce the intake of salt

3. Reduce intake of fatty foods

4. Eating well balance diet

B.1. Regular exercise

2. Avoid smoking

3. Avoid excessive intake of alcohol

4. Reduce intake of cholesterol

8 0
4 years ago
Read 2 more answers
Please help me out please
natita [175]

Answer:

RC = 40

Step-by-step explanation:

Note that the circumcentre is equally distant from the triangle's 3 vertices.

That is : PC = RC = QC

Equate any pair and solve for x

Using RC = PC, then

5x - 15 = 3x + 7 ( subtract 3x from both sides )

2x - 15 = 7 ( add 15 to both sides )

2x = 22 ( divide both sides by 2 )

x = 11

Hence

RC = (5 × 11) - 15 = 55 - 15 = 40 units

5 0
3 years ago
Please help due in 10 min.
sleet_krkn [62]

Answer:

A: equiangular   S: Right

Step-by-step explanation:

5 0
3 years ago
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