3/4(24-20t)+9t=2(5t=1)?

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3/4(24-20t)+9t=2(5t=1)?

2007-02-24 07:14:22 · 3 answers · asked by swamp606887 2 in Science & Mathematics ➔ Mathematics

3 answers

3/4(24 - 20t) + 9t = 2(5t + 1)

4(3/4)(24 - 20t) + 4(9t) = 4[2(5t + 1)]

3(24 - 20t) + 36t = 8(5t + 1)

72 - 60t + 36t = 40t + 8

72 - 24t = 40t + 8

72 - 24t + 24t = 40t + 8 + 24t

72 = 64t + 8

72 - 8 = 64t + 8 - 8

64 = 64t

64/64 = 64t/64

64/64 = t

1 = t

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2007-02-24 07:47:47 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋

t=.2 or 1/2

2007-02-24 07:23:41 · answer #2 · answered by zakariya93 1 · 0⤊ 0⤋

18-15t+9t=10t+2
18-24t=10t+2
-34t=-16
t=.47

2007-02-24 07:40:41 · answer #3 · answered by Dill 4 · 0⤊ 0⤋