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3 years ago

Please answer this correctly

Mathematics

1 answer:

Troyanec [42]3 years ago

8 0

Answer:

Mode

Step-by-step explanation:

Mean:

Before replacing = 464/8 = 58

After replacing 42 with 98 = 520/8 = 65

Mode:

Before replacing = 42

After replacing 42 with 98 = 98

Median:

25, 42 , 42 , 47, 55 , 59, 96,98

Before replacing = 47+55/2 = 51

25, 42 , 47, 55 , 59, 96,98 , 98

After replacing 42 with 98 = 55+59/2 = 114/2 = 57

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How do you find out if a like is parallel, perpendicular, or coincidental when theres 2 equations

finlep [7]

The slope intercept form of the equation of a line is given as:

y = mx + c

where m = the slope of the line

c = the y - intercept of the line

1) Two line are parallel if they have the same slope

That is:

$\begin{gathered} \text{If the equation for line 1 is: y = m}_1x+c_1 \\ \text{If the equation for line 2 is: y = m}_2x+c_2 \\ \text{Then, line 1 is parallel to line 2 if m}_1=m_2 \end{gathered}$

2) Two equations are perpendicular if the slope of one is the negative inverse of the other.

$\text{That is : m}_1=\text{ }\frac{-1}{m_2}$

3) Two equations are coincidental if they have the same slope and the same y intercept

$\begin{gathered} \text{That is: m}_1=m_2_{} \\ \text{and c}_1=c_2 \end{gathered}$

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1 year ago

a student has some $1 and $5 bills in his wallet. he has a total of 15 bills that ar worth $47. how much of each type of bill do

Karolina [17]

Answer:

a = 7 ($1)

b = 8 ($5)

Step-by-step explanation:

a + b = 15 | (-)

1a + 5b = 47

- a - b = - 15

a + 5b = 47

------------------ +

-a + a - b + 5b = - 15 + 47

4b = 32

b = 32 : 4

b = 8

a = 15 - 8 = 7

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4 years ago

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kobusy [5.1K]

Answer:

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3 years ago

In a group of 28 students, 6 study both Art and Biology.

Helen [10]

Answer:

3/13

Step-by-step explanation:

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3 years ago

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bagirrra123 [75]

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Another way to think about this problem is if you rewrite the equation slightly to:

12c - c =
12c - 1c =
11c

6 0

3 years ago