Answer:
x = 7/2 = 3 1/2
Step-by-step explanation:
2x + 5= 12
Subtract 5 from each side
2x + 5-5= 12-5
2x = 7
Divide each side by 2
2x/2 =7/2
x = 7/2
Changing from an improper fraction to a mixed number
2 goes into 7 3 times with 1 left over
x = 3 1/2
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Answer:</h2>
The average rate of change between two input values is the total change of the function values (output values) divided by the change in the input values
The calculation for ROC is simple in that it takes the current value of a stock or index and divides it by the value from an earlier period. Subtract one and multiply the resulting number by 100 to give it a percentage representation.
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Step-by-step explanation:</h2>
I know <u>it`s not the answer</u> but I hope it helps a little Δ Δ
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The unknown number is - 2.5
Let the number = n
The equation will be formed as follows;
- eight times a number plus two = 8n + 2
- Two times the quantity of eight times a number plus two = 2(8n + 2)
- two times the same number minus seven = 2n - 7
- three the quantity of two times the same number minus seven = 3(2n-7)
Our final equation becomes;
2(8n + 2) = 3(2n-7)
Simplify as follow, to determine the unknown number;
16n + 4 = 6n - 21
16n - 6n = -25
10n = -25
n = -2.5
Thus, the unknown number is - 2.5
Learn more here: brainly.com/question/13818690
The "line of best fit" is the result of a linear regression computation. If you have done that, you already know its equation.
If you have "eye-balled" the line into place, then you have to figure out its equation from points you read on the graph. We take a couple of the points to be ... (2001, 1700) and (2010, 2450)
The line through these points will have the equation
... y = (2450 -1700)/(2010 -2001)(x -2001) +1700
... y = (250/3)(x -2001) +1700
Putting x=2013 into this equation, we get ...
... y = (250/3)(2013 -2001) +1700
... = (250/3)(12) +1700
... y = 2700
The population is predicted to be 2700 in 2013.
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Had you drawn your graph with a vertical grid line at 2013, you could have read the number from the graph.
Kristin jogs 48 miles in 50 minutes, so her unit rate is 48miles/50 minutes
