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OleMash [197]
3 years ago
10

What is the arithmetic mean of the following numbers? 8,10,10,10,6,7,8

Mathematics
2 answers:
Law Incorporation [45]3 years ago
6 0

Answer:

Step-by-step explanation:

To find the arithmetical mean, add all the numbers togther and divide by the number of numbers.

The sum of all the numbers is ... 59.

There are 7 numbers.

59/7 which is about 8.43 is the arithmetic mean.

son4ous [18]3 years ago
4 0

Answer:

8.43

Step-by-step explanation:

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The school athletic director had a budget of $703.55 to purchase 55 items for the volleyball team. He purchased uniforms for $18
ira [324]

Answer:

Variables are x, y, z

System of equations are;

2x + z = 49

31.49x + 9.75z = 625.61

Step-by-step explanation:

Let x represent uniforms, y represent volleyball, z represent a pair of knee pads.

We are told he bought 6 more balls than uniforms. Thus; y = x + 6

Since he is buying 55 items, thus equation that represents total number of items bought is;

x + y + z = 55

Since y = x + 6, then;

x + x + 6 + z = 55

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We are told he purchased uniforms for $18.5 each, volleyball for $12.99 dollar each, knee pads for $9.75 dollar for each pair

Since he has a budget of $703.55.

Thus, equation that represents budget and amount for each item is;

18.5x + 12.99(x + 6) + 9.75z = 703.55

18.5x + 12.99x + 77.94 + 9.75z = 703.55

31.49x + 9.75z = 703.55 - 77.94

31.49x + 9.75z = 625.61

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The first time I did the math including 8 but we are increasing it so it will just be how much did the price increase from 8 to 18 well I know 100% of 8 is 8 so thats 100% and 25% of 8 is 2 so I added the two and 8 + 8 = 16 + 2 = 18 I added those percents 100 + 25 = 125%

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