All categories

3 years ago

What is the mean of the following data set?

Mathematics

1 answer:

elixir [45]3 years ago

8 0

Step-by-step explanation:

You have to add all the numbers equals 160.

Then divide how many numbers there are. There are 20 numbers. Then, it is the sum divided by the count.

Hope this helps. Good Luck!

You might be interested in

Please see attachment and SHOW WORK. Thank You. Will mark brainliest!!

Fofino [41]

a. Let c and b represent the numbers of capped and broken bottles, respectively. Here is the system of equations.

... c + b = 15 . . . . 15 bottles have come Erica's way

... 4c -2b = 6 . . . .Erica's net pay for the day is 6 cents

b. By substitution, we can write an expression for b in terms of c:

... b = 15 - c

Then put it into the second equation:

... 4c - 2(15-c) = 6

... 6c - 30 = 6 . . . . eliminate parentheses

... 6c = 36 . . . . . . .add 30

... c = 6 . . . . . . . . . divide by 6

... b = 15 - 6 = 9 . . find the value of b

Erica has capped 6 bottles and broken 9.

_____

Here's one way to do it by elimination. We can divide the second equation by 2 to put it into standard form:

... 2c - b = 3

Now, adding it to the first equation gives

... (2c -b) + (c +b) = (3) + (15)

... 3c = 18 . . . . . simplify. Notice the b variable has been eliminated

... c = 6 . . . . . . . divide by 3

... 6 + b = 15

... b = 9 . . . . . . substitute into the first equation and solve for b by subtracting 6

Erica has capped 6 bottles and broken 9. (same solution as above)

4 0

3 years ago

Two-thirds of the sum of a number squared and 5 is fourteen

RideAnS [48]

Answer:

2/3( x^2 + 5 ) = 14 or 2/3x^2 - 32/3

Step-by-step explanation:

Part 1:

Two-thirds ( 2/3 )

of the ( (---) )

sum ( + )

of a number squared ( x^2 ) and 5 ( + 5 )

is fourteen ( = 14 )

Part 2 (Not super confident about):

2/3( x^2 + 5 ) = 14

2/3x^2 + 10/3 = 14

2/3x^2 - 32/3

Hopefully this helps!

Brainliest please?

7 0

3 years ago

Five over twenty five÷ 100

hjlf

Answer:

Step-by-step explanation:

According to the question,five over 25 divided by 100

Can also be written as

5/25/100

5/25×100

1/5 ×100

So the final answer is 20

3 0

3 years ago

What is the least common multiple of 21 and 30?

Arisa [49]

Answer should be 210

3 0

3 years ago

Read 2 more answers

Solve the percent equation. 646 is what percent of 340?

ella [17]

646 is 190% of 340

Simply do the following,

1) divide,

$646 \div 340 = 1.9$

2) multiply the above answer by 100

$1.9 \times 100 = 190$

3) dock on that percent sign,

$190\%$

---------------------------------------------------------

I hope that helps you out!!

Any more questions, please just ask me!!

~ Zoey

4 0

3 years ago