Answer:x+42+3x = 90
Combine like terms:
3x+x = 4x
42+4x = 90
Subtract 42 to both sides
90-42 = 48
Divide 4 by 48
48/4 = 12
X = 12
100% right
Step-by-step explanation:
Answer:
69 seconds, or 1 minute and 9 seconds
Step-by-step explanation:
Answer:
Step-by-step explanation:
125 I think
Answer:
Step-by-step explanation:
1. 51 degrees
2. 90 degrees
3. 17 degrees
4. 107 degrees
5. 121 degrees
6. 68 degrees
Step-by-step explanation:
90 degree - 22 degree = 68 degree
use sin rule
sin90/x = sin68/56
x =60.4 degree
