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3 years ago

Find the mean of the following number set: 89, 76, 85, 76, 77, 84

Mathematics

2 answers:

klio [65]3 years ago

6 0

Answer:

81.167~

Step-by-step explanation:

You can find the mean (or average) of a set of numbers by adding them together and dividing the sum by the amount of values there are.

In this case, there are 6 values.

The total sum of the six values is 487.

To receive the mean, divide 487 by 6.

Stella [2.4K]3 years ago

4 0

Answer:81.1

Step-by-step explanation:

mean:add all numers then divide by the amount of numbers u have

89+76+85+76+77+84=487

then divide by 6 which is 81.1111111111111111 but u write it without repeating or round it

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3 years ago

A coin collector has $45 in just dimes and quarters in a piggy bank he counted all the coins and there are 240 total how many ea

Whitepunk [10]

Answer:

The number of <u>dimes are 100</u> and number of <u>quarters are 140.</u>

Step-by-step explanation:

Let the number of dimes be 'd' and quarters be 'q'.

Given:

The sum of amount is $45.

The total number of coins are 240.

1 dime = $0.10

∴ 'd' dimes = $\$0.10d$

1 quarter = $0.25

∴ 'q' quarters = $\$0.25q$

Now, as per question:

$d+m=240-----1\\0.1d+0.25q=45---2$

Multiplying equation (1) by -0.1 and adding the result to equation (2), we get:

$-0.1d-0.1q=240\times -0.1\\-0.1d-0.1q=-24\\0.1d+0.25q=45\\-----------\\0.15q=21\\q=\frac{21}{0.15}=140\\\\d=240-q=240-140=100$

Therefore, the number of dimes are 100 and number of quarters are 140.

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3 years ago

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Find the quotient 7.980 divided by 0.19

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The answer 7980 divided by .19 =/is 42.

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3 years ago