20% of a number is 17. Find the number.
2 answers:
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The marked angles are opposite angles, and as such they have the same measure. So, we have
Subtract 2a and 11 from both sides to get
Divide both sides by 4 to get
Now that we know the value of a, we can compute the measure of the angles. We can also verify that the solution we found is correct by verifying that both expressions actually give the same result:
Answer:
The coordinates of point S are (8,-2)
Step-by-step explanation:
we know that
The formula to calculate the midpoint between two points is equal to
Let
Point S(x2,y2)
substitute the given values
<em>Solve for x2</em>
<em>Solve for y2</em>
therefore
The coordinates of point S are (8,-2)