B. y=4/5x its just taking half
Answer:
x=12 and
(9*12)-10=98
(5*12)+38=98
both angles are = 98
Step-by-step explanation:
do this :
9x - 10 = 5x + 38
( - 5x from both sides)
4x - 10 = 38
(add 10 to both sides)
4x = 38+10
4x=48
(divide by 4)
x=48/4
= 12
substitute into the equations:
(9*12)-10
(5*12)+38
Answer:
24m-28
Step-by-step explanation:
4*6m=24m
-7*4=-28
24m -28
Step-by-step explanation:
Total ratio=9+11=20
number of girls=11/20*400
=220
