Answer:
7) a = 60; b = 100
8) c = 20
9) d = 45
Step-by-step explanation:
7)
a + 120 = 180
a = 60
b + 80 = 180
b = 100
8)
5c + 4c = 180
9c = 180
c = 20
9)
3d + d = 180
4d = 180
d = 45
Answer:
49/54
Step-by-step explanation:
7/9 + 7/54
42/54 + 7/54
49/54
Answer:
C=44/2
c=22
Two time c is equal to 44
one time c is equal to 22