Answer:
14
Step-by-step explanation:
we are solving 15 + |-3| - 4
anything inside | | means it's absolute value.
absolute value means that even if it is a negative number inside, it will change to positive. if it is a positive number inside, it will stay the same.
so |-3| is 3.
15 + 3 - 4
18 - 4 = 14.
we got the answer
Add to both sides
Divide both sides by 11
8
Unit per student = 4000/500 = 8
m∠8 + m∠7 = 180°
therefore
m∠7 = 180° - m∠8
m∠8 = 124°
substitute:
m∠7 = 180° - 124° = 56°
Answer: 56 degrees
