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IrinaVladis [17]

2 years ago

13

Will someone please help me!!!??? NO LINKS!!! You need to solve a system of equations. You decide to use the elimination method.

Which of these is NOT allowed???!!!

1 answer:

Juliette [100K]2 years ago

3 0

Answer:

A

Step-by-step explanation:

That was on my quiz yesterday and I got it correct.

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What fraction makes this division<br> sentence true? <br> 2/3 divided by ? = 4

NeX [460]

Answer:

1/6

Step-by-step explanation:

The opposite of dividing by a fraction is multiplying by the inverse of the fraction. So, to find out what fraction to divide by you need to find what number you need to multiply 2/3 by to get 4.

2/3 x 6 = 4

So if you want to divide instead of multiply, just find the inverse of the number you are multiplying by.

The inverse of 6 is 1/6. Therefore, 2/3 divided by 1/6 equals 4.

(2/3)/(1/6) = 4

6 0

3 years ago

The data is the number of text messages you send a day. find the mean, median, and mode of the data.

Novay_Z [31]

Answer:

6, 8, 10, 12, 18, 20

Mean: 6 + 8 + 10 + 12 + 18 + 20 = 74/6 = <em>12.3</em>

Median: <em>11</em>

Mode: <em>there are no mode in the following listed numbers or data set.</em>

<em />

~hope this helps~

would highly appreciate it if you would mark me the brainliest

4 0

2 years ago

What is the average rate of change of the function f(x) = 5x ^ 2 + 20x between x = 0 and x = 0.5

Vitek1552 [10]

9514 1404 393

Answer:

22.5

Step-by-step explanation:

The average rate of change on the interval [a, b] is the ratio ...

(f(b) -f(x))/(b -a)

For your function and interval, it is ...

(f(0.5) -f(0))/(0.5 -0)

Since f(0) = 0, this reduces to ...

average rate of change = 2·f(0.5) = 2(5(0.5)² +20(0.5)) = 2(5/4 +10)

average rate of change = 22.5

8 0

2 years ago

Use Euler’s Formula to find the missing number.<br><br> Faces: _____<br> Edges: 15<br> Vertices: 9

Alla [95]

Answer:

18

Step-by-step explanation:

thanks and follow mark as brainlist

7 0

3 years ago

Read 2 more answers

At the Boston Marathon there were 20,000 runners who finished the race. Each runner ran a distance of 26 miles. If you add toget

andre [41]

Answer:

the runners have gone 20.8 times around the globe all together

Step-by-step explanation:

At the Bostom Marathon, we have a total of

N = 20,000 runners

We know that each runner ran a distance of

d = 26 miles

Therefore, the total distance travelled by all runners combined is:

$D=Nd=(20,000)(26)=5.2\cdot 10^5 mi$

We know that the circumference of the Earth is

$c=2.5\cdot 10^4 mi$

Here we want to find how many times around the globe would the marathon runners have gone. This can be found by calculating the following ratio:

$n=\frac{D}{c}$

And substituting the values, we find:

$n=\frac{5.2\cdot 10^5}{2.5\cdot 10^4}=20.8$

So, the runners have gone 20.8 times around the globe all together.

4 0

3 years ago