Question

0.05X+0.25 Y=11
0.15+0.05 Y = 12 SOLVE BY ELIMINATION METHOD

Answer 1

do you mean
0.15X + 0.05Y = 12?
If so ,multiply that whole equation by 5 so you get
0.75X + 0.25 = 60
now subtract that first equation to give
0.7X=48

Answer 2

sorry i made a mistake in my 2nd equation (4th line), its meant to be
0.75X + 0.25Y = 60 (i forgot the y)

Answer 3

If you mean 0.15x + 0.05y = 12, we'll have:

0.15x + 0.75y = 33
0.15x + 0.05y = 12
0.70y = 21
y = 21/0.70 or 2100/70 or 30

0.15x + 0.05y = 12
0.15x + 0.05(30) = 12
0.15x + 1.5 = 12
0.15x = 10.5
x = 105/15 or 7

Answer 4

SO WHATS THE ANSWER IM KIND OF CONFUSED

Answer 5

0.05x+0.25 y =11 ; multiply by -1
0.15x+0.05 y = 12

-0.05x-0.25 y =-11
0.15x+0.05 y = 12
-------------------
.10 x = 1

x = 10


0.15(10)+0.05 y = 12

1.5+0.05 y = 12

0.05 y = 12-1.5

y = 10.5/.05 = 1050/5 = 210

Answer 6

0.05(10)+0.25(210) =11

.5 + 52.5 ... got it wrong .... bummer

Answer 7

x = 70 and y = 30

Answer 8

70 and 30 are right :)

Answer 9

0.05X+0.25Y = 11
0.15X+0.05Y = 12

5x + 25y = 1100
15x + 5y = 1200

Answer 10

Oh. I got the 10.5/0.15 wrong. It must be 1050/15 or 70, as La-MrC said.

Answer 11

i saw the numbers wrong .... prolly cause of the decimals :)

Answer 12

Yeah. Decimals can really be confusing in the eyes sometimes.