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andreev551 [17]
4 years ago
11

there were 96 runners to start a race. in the first half of the race, 1/4 of them dropped out. in the second half of the race, 1

/6 of the remaining runners dropped out. how many runners finished the race?
Mathematics
1 answer:
AlekseyPX4 years ago
4 0

Answer: 60

Step-by-step explanation: 1/4 of 96 is 24 so you subtract that and get 72. And 1/6 of 72 is 12 and you subtract that leaving you with 60 to remain.

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If the mean of the data set is 35 apples find the number of apples on the Granny Smith tree
alisha [4.7K]

Answer:

N=\frac{\sum x_{i} }{35}

Step-by-step explanation:

Given

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The means is defined as the quotient between the sum of all elements and the total number.

Mathematically, it would be defined as

x=\frac{\sum x_{i} }{N}

But, we know that the mean is equal to 35.

35=\frac{\sum x_{i} }{N}

Then, we solve for N

N=\frac{\sum x_{i} }{35}

As you can see, the total number of apples depends on the sum of all elements of the data set.

For example, if the sum of all elements is 700, the total number of apples would be

N=\frac{700}{35}=200

Therefore, the expression that represents the total number of apples is

N=\frac{\sum x_{i} }{35}

3 0
3 years ago
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The courtyard behind Jennie’s house is shaped like a trapezoid the bases measure 8 meters and 11 meters the height of the trapez
almond37 [142]

Answer:

104.5 meters square

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The area is A = 1/2(8+11)*12.

A = 1/2 (19)*12 = 104.5

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A

Step-by-step explanation:

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If you are looking for the average it it somewhere around 64
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