Answer:
D. 4x+5x=180
Step-by-step explanation:
Answer:
x = 10
Step-by-step explanation:
= 
2/4 = 5/x
1/2 = 5/x
cross multiply
x=5*2 = 10
Answer: x=6
Y=6
Step-by-step explanation:
Using the elimination method
3x+5y=48.....equ1
-3x+5y=12......equ2
Add equation 1 &2
3x+5y=48
+
-3x+5y=12
Answer =
10y=60
Y=60/10
Y=6
Substitute for y in equation 1
3x+5y=48
3x+5(6)=48
3x+30=48
3x=48-30
3x=18
X=18/3
X=6
Therefore,
X= 6
Y= 6