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zlopas [31]
2 years ago
9

The mean of a set of data is 45 years. Find the missing numbers in the data set {40,45,48,?,54,?,45}. Explain the method or stra

tegy you used.
please help me!!!​
Mathematics
1 answer:
Vera_Pavlovna [14]2 years ago
8 0

Answer:

42 and 41

Step-by-step explanation:

So how I did it tbh I went everywere with this but I went backwards because the how you find the mean of something is adding all the values and then dividing them by the number of values(40+41+42+45+45+48+54=315, 315divided by 7=45) but anyway 45x7(because multiplication is the opposite of division)that equals 315-232 which is the answer to 40+45+48+54+45 which were the numbers that were given

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Natasha2012 [34]
8 people each buy 7 so, 8 x 7 = 56
She needs to sell 60:
60 - 56 = 4
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5 0
3 years ago
5
S_A_V [24]

Answer:

C

Step-by-step explanation:

5 + 6 + 4 = 15

Small - 5/15 = 1/3

Large - 4/15 = 4/15

The probability that he grabs a Large-sized shirt would be 4/15, which is around 26.7%. After that, he will grab a Small-sized shirt, which would have a probability of 33.33%. After combining the two, the only answer choice that could possibly make any sense is C. (using the process of elimination.)

7 0
3 years ago
C) How long is the potato in the air? *hint set h=0*<br> if h=-2(t-3)2+32
Galina-37 [17]

Answer:

if you meant to put (t-3)^{2}, then the answer is 7

Step-by-step explanation:

h=-2(t-3)^{2}+32

solve for t

0=-2(t-3)^{2}+32

subtract 32 from both sides

-32=-2(t-3)^{2}

divide both sides by -2

16=(t-3)^{2}

find suare root of 16

4= t-3

add 3 to both sides

7 = t

6 0
3 years ago
The vertex of the parabola below is at the point (1,-3). Which of the equations
kramer

Answer:

A

Step-by-step explanation:

A. X=-3(4-1)

3 0
3 years ago
Read 2 more answers
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Pavel [41]

Answer:

the answer is 6

Step-by-step explanation:

6 0
3 years ago
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