Question

Help pls pla help need help

Answer 1

Answer:

Step-by-step explanation:

A+B+C+D=450

2A:B/2:C+50:D-40=1:2:3:4

2A/D-40=1/4

A=(D-40)/8

B/2(D-40)=2/4

B=D-40

C+50/D-40=3/4

C=3D-320/4

adding every thing and equate to 450

D=200

C=70