Answer:
y = 40
Step-by-step explanation:
The sum of the angles of a triangle are 180 degrees
y+10 + 2y +50 = 180
3y+60 = 180
Subtract 60 from each side
3y+60-60 = 180-60
3y = 120
Divide each side by 3
3y/3 = 120/3
y = 40
I think you are right but i am not sure
Answer:
25.5%
Step-by-step explanation:
% error = | estimate - actual | / actual × 100%
% error = | 59 - 47 | / 47 × 100%
% error ≈ 25.5%
19,3/4 = 79/4
15,3/4 = 63/4
Perimeter = 79/4+79/4+63/4+63/4 = 284/4 = 71feet
22,1/2 = 45/2 X 4 = 90
90-71= 19 feet
Let me know if you need more of an explanation, but the answer in 19 feet (option 4)
N a o m i i s i n c o r r e c t.
