noahook84
30.07.2019 •
Mathematics
Alvin’s age is two times elgas age. the sum of their ages is 18. what is elgas age?
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Ответ:
18=2x+x
x= Elga's age.
18=3x
Divide both sides by 3.
x=6
Elga is 6 years old.
I hope this helps!
~kaikers
Ответ:
Option D. Clockwise rotation of 180° about the origin.
Solution:
The figure Q in in the I (first) quadrant, and the figure Q' is in the III (third) quadrant.
Option A. Counterclockwise rotation of 90° about the origin would translate the figure Q to the II (second) quadrant.
Option B. Counterclockwise rotation of 270° about the origin would translate the figure Q to the IV (fourth) quadrant.
Option C. Clockwise rotation of 90° about the origin would translate the figure Q to the IV (fourth) quadrant.
Option D. Clockwise rotation of 180° about the origin would translate the figure Q to the III (third) quadrant.