Hedi adds 5 to a number, then multiples the sum by negative 2. The
1 answer:
Answer:
Step-by-step explanation:
Let's say that the number is x. Hedi adds 5 to the number, then multiplies its sum by -2. The result is 6. Writing this out as an equation:
So now we solve for x. First, we divide both sides by -2, giving us:
Then, to finish the problem, we subtract 5 from both sides:
Thus, the number Hedi started with was -8
Hope this helps!
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<u>Solution-</u>
Properties of Correlation Coefficient,
1- A positive correlation means that if one variable gets bigger, the other variable tends to get bigger.
2- A negative correlation means that if one variable gets bigger, the other variable tends to get smaller.
As in this graph x increases y gets decreased, so it is a negative co-relation. And the points are scattered more the line, so it is a moderate negative co-relation graph. (Please follow the attached picture herewith)
It's not entirely clear to me what you're trying to solve, but it looks like the initial equation is
First convert each term into a fraction with the same (i.e. the least common) denominator. The first term needs to be multiplied by <em>a</em> + 2; the second term by (<em>a</em> + 3) (<em>a</em> + 2); and the third term by <em>a</em> + 3 :
Now that everything has the same denominator, we can combine the fractions into one. Move every term to one side and join the numerators:
Simplify the numerator:
If neither <em>a</em> = -3 nor <em>a</em> = -2, we can ignore the denominator:
Solve for <em>a</em> :