Answer:
let x be the Robert piece
y Maria's piece
x+y=10
0,5*x ( half of Robert piece)= 2/3 y( 2 thirds)
2 equations then
x+y= 10 then x= 10-y
0,5x= 0,67 y then we replace x by 10-y on the second equation and it gives
0,5(10-y)= 5-0,5y=0,67y
5= 1,17 y so y= 4,27 and then x= 10-y= 5,73
the question asks how much Robert wire is longer than Maria's wire
so we get x-y= 1,46
Answer:
102.16
Step-by-step explanation:
2(2*3.4+2*8.2+3.4*8.2)=102.16
Download photomath, it should help you sith all that :)
Answer:
3,258
Step-by-step explanation:
first multiplay 49.20 with 30
=1,476
then multiply 59.40 with 30
=1,782
then add them together
1476+1782=3258
