2007-04-17 23:32:24 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
0.02p + 84 - 0.06p = 90
84 - 0.04p = 90
-0.04p = 90 - 84
-0.04p = 6
-4p = 600
4p = -600
p = -150
hope this will help.....
2007-04-17 23:41:51 · answer #1 · answered by nosaj_amazin 1 · 0⤊ 2⤋
0.02p+0.06(1400-p)=90
Multiply out the parenthesis first.
0.02p+84-.06p=90
Group like terms together
.02p-.06p=-84+90
Remember when you cross over the equal sign change a + to a - and vis versa
-0.04p=6
Divide both sides by 4.
p=-1.33
2007-04-17 23:46:55 · answer #2 · answered by Kandice F 4 · 0⤊ 0⤋
0.02p + 0.06(1400 - p) = 90
0.02p + 84 - 0.06p = 90
0.02p - 0.06p = 90 - 84
-0.04p = 6
p = 6 / -0.04
p = -150
Therefore, p = -150
2007-04-18 01:57:25 · answer #3 · answered by charming_danielrizal 1 · 0⤊ 0⤋
0.02p + 0.06(1400 - p) = 90
0.02p + 84 - 0.06p = 90
-0.04p = 6
p = -150
2007-04-17 23:42:51 · answer #4 · answered by tan_precious 2 · 0⤊ 0⤋
0.02p + 0.06(1400 - p) = 90
0.02p + 84 - 0,06p = 90
- 0.04p + 84 = 90
- 0.04p + 84 - 8 4 = 90 - 84
- 0.04p = 6
- 0.04p / - 0.04 = 6/ - 0.04
p = - 6/0.04
p = - 150
- - - - - - - -s-
2007-04-18 02:59:36 · answer #5 · answered by SAMUEL D 7 · 0⤊ 0⤋
0.02p+(84-0.06p)=90
0.02p+84-84-0.06p=90-84
-0.04p=6
-0.04p/-0.04=6/-0.04
p=-150
2007-04-18 02:07:29 · answer #6 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋