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Art [367]
3 years ago
13

What is the mean of 4,4,6,6,7,7,8,9,9,9,9,10. Need answer ASAP.

Mathematics
1 answer:
malfutka [58]3 years ago
3 0
The mean would be 7.3

I hope that this helps you !
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Step-by-step explanation:

find the average of the x coordinates and y coordinates

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Administration know that 50% of the students at garden grove middle school ride the bus to school.
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3 years ago
The difference between two numbers is 15. If 8 is added to twice the greater number, the result is 4 less than 3 times the lesse
yuradex [85]

Answer:


Step-by-step explanation:

Let x be the greater number and y be the smaller number. We know that their difference is 15, so we have

x-y=15

Then, we have the following information: if we add twice the greater (2x) and 8 (2x+8), the result is 3 times the lesser (3y) minus four (3y-4). So, we have

2x+8 = 3y-4 \iff 2x-3y = -12

So, we have the follwing system:

\begin{cases} x-y=15\\2x-3y = -12\end{cases}

From the first equation, we can derive x = y+15, and substitute this expression in the second equation to get

2(y+15)-3y = -12 \iff 2y + 30 -3y = -12 \iff -y = -42 \iff y = 42

Substitute this value for y in the first equation to get

x-42=15 \iff x=15+42 \iff x = 57

8 0
3 years ago
The sum of the digits of a certain two digit number is 8. By reversing the digits the number is increased by 18. What is the num
Dennis_Churaev [7]
6 and 2
Hope this helps
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