Answer:
Step-by-step explanation:
5. The opposite angles of a cyclic quadrilateral sum to 180 so
9y + 5 + 18x + 4 = 180 and
9y - 9 + 21x + 6 = 180
Solve this system to find x and y.
7. Solved in the same way.
Have to go right now so i cant help you any further.
By adding 20+20+19+13+x and dividing by 5 you will receive the answer. Therefore by substituting numbers, 8 will give you the correct average.
20+20+19+13+8 = 80
80/5 = 16.
Therefore x = 8
If I have helped you out, help me out by making me the brainliest answer.
Answer:
120 grams
if they are all the same size
Answer:
Step-by-step explanation:
Umm I believe it would be 7189939
