2006-12-13 00:42:59 · 8 answers · asked by felicia 1 in Science & Mathematics ➔ Mathematics
0.1p+2.1 = 4.6p-1.9+0.5p
2.1+1.9 = 4.6p-0.1p+0.5p
4 = 5p
4/5 = p
0.8 = p
2006-12-13 00:49:58 · answer #1 · answered by cazookie 2 · 1⤊ 0⤋
0.1p+2.1=4.6p-1.9+0.5p
Multiply by 10 to get rid of decimals to get:
p +21 = 46p -19 +5p
p-46p-5p = -21 -19
-50p = -40
p= -40/-50 = 4/5 = 0.8
2006-12-13 08:51:05 · answer #2 · answered by ironduke8159 7 · 1⤊ 0⤋
p = 4/5
2006-12-13 08:47:25 · answer #3 · answered by teacher16 1 · 1⤊ 0⤋
0.1p + 2.1 - 4.6p - 1.9 + 0.5p
0.1p + 2.1 = 5.1p - 1.9
0.1p + 2.1 - 0.1p = 5.1p - 1.9 - 0.1p
2.1 = 5p - 1.9
2.1 + 1.9 = 5p - 1.9 + 1.9
4 = 5p
4/5 = 5p/5
4.5 = p
0.8 = p
The answer is p = 0.8
Insert the p value into the equation
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Check
0.1p + 2.1 = 4.6p - 1.9 + 0.5p
0.1(0.8) + 2.1 = 4.6(0.8) - 1.9 + 0.5().8)
0.08 + 2.1 = 3.68 - 1.9 + 0.4
2.18 = 4.08 - 1.9
2.18 = 2.18
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2006-12-13 09:58:03 · answer #4 · answered by SAMUEL D 7 · 0⤊ 1⤋
2.1 + 1.9= -0.1p + 4.6p + 0.5p
4=5p
4/5=5p/5
0.8=p
p=0.8
2.1 + 1.9= -0.1(0.8) + 4.6(0.8) + 0.5(0.8)
4=4
Final answer=4
2006-12-13 08:50:25 · answer #5 · answered by tayki_hanson 2 · 0⤊ 1⤋
0.1p+2.1= 4.6p-1.9+0.5p=
2.1+1.9=4.6p+0.5p-0.1p
4=5p==>
p=5/4
p=1,25
2006-12-13 08:51:37 · answer #6 · answered by toxisoft 4 · 0⤊ 1⤋
decimal... p=.655172414...
fraction... p=19/29
2006-12-13 08:46:09 · answer #7 · answered by Ba12348 5 · 0⤊ 1⤋
p=0.8
2006-12-13 08:50:46 · answer #8 · answered by Mr Bean 5 · 0⤊ 1⤋