SOLUTION: I have a problem where I need to solve the equation
(2/t)= (t/5t-12)
and the lcd will be 5t-12, but the answers that I come up with when I work this problem have not matched the
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-> SOLUTION: I have a problem where I need to solve the equation
(2/t)= (t/5t-12)
and the lcd will be 5t-12, but the answers that I come up with when I work this problem have not matched the
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Question 188130This question is from textbook
: I have a problem where I need to solve the equation
(2/t)= (t/5t-12)
and the lcd will be 5t-12, but the answers that I come up with when I work this problem have not matched the answers in the back of the book so far. I think the issue I'm having is when i do the 2/t it seems to me that teh t's will cancel and then I am left with 10-24, but that seems to not work
Any help with this would be greatly appreciated!! This question is from textbook
You can put this solution on YOUR website! solve the equation
(2/t)= (t/5t-12)
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Cross-multiply to get:
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2(5t-12) = t^2
10t - 24 = t^2
--------
Rearrange:
t^2 - 10t + 24 = 0
--------
Factor
(t-6)(t-4) = 0
t = 6 or t = 4
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Another way to do it without cross-multiplying:
(2/t)= (t/5t-12)
The least common multiplier of the denominators is t(5t-12)
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multiply both sides by the lcm to get:
(2)(5t-12)= (t)(t)
10t -24 = t^2
t^2 -10t + 24 = 0
(t-6)(t-4)
t = 6or t = 4
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Cheers,
Stan H.
Cheers,
Stan H.
You can put this solution on YOUR website! =
Cross multiply
2(5t-12) = t^2
:
10t - 24 = t^2
:
0 = t^2 - 10t + 24
A quadratic equation that can be factored to:
(t-4)(t-6) = 0
two solutions:
t = +4
and
t = +6
:
:
Check both solutions in original problem
x=6 = = =
You can check solution x=4 in the same way