Can you answer these geometry questions?

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Can you answer these geometry questions?

1. 2(13t-15)+3(t-19)=0

2. 5x/4+1/2=x - 1/2

3. x/5 - x/2 = 3

4. 0.25x + 0.75(10-x)=3 ps. your my hero

2007-08-29 16:47:58 · 2 answers · asked by john s 1 in Science & Mathematics ➔ Mathematics

2 answers

2(13t-15)+3(t-19)=0
26t-30+3t-58=0
29t-87=0
29t=87
t=87/29
t=3

5x/4+1/2 = x - 1/2
5x/4+1=x
5x+4=4x
x=-4

x/5 - x/2 = 3
5x/10-2x/10=3
-3x/10=3
-3x=30
x=-10

0.25x+0.75(10-x)=3
0.25x+7.5-0.75x=3
-0.5x=-4.5
x=9

2007-08-29 17:17:01 · answer #1 · answered by peggysnotions 2 · 0⤊ 0⤋

Geometry?

2007-09-01 12:06:57 · answer #2 · answered by Tony 7 · 0⤊ 0⤋