we are given
The angle is at right angled
It means that it's angle will be 90 degree
Since, these angles are part of right angle
so, their sum must be 90 degree
so, we get

now, we can solve for a


divide both sides by 7
and we get
.............Answer
Answer:
Step-by-step explanation:
<u>Given:</u>
<u>Solving for x:</u>
Answer:
Su has 17 bears
Step-by-step explanation:
Su has 15, Erin takes out 7 of her collection and splits evenly. each sister should get 2 each. Su has 17.