- #1
amandablackwood
- 7
- 0
Hey guys - It's me again. Listen, I need help once more.
My husband and I have both tried to solve this equasion, and still can't match it to the answer book. Can anyone out there explain how we can put the answer back into the problem and it doesn't work out for us? What step are we missing here?
2/3 k - (k + 1/4) = 1/12 (k + 4)
40/60 k - (k + 15/60) = 5/60 (k + 240/60)
Eventually we solved :
k = -7/5, as the answer book said we should.
When we put k = -7/5 back into the equasion, it didnt work. Let me show you...
2/3 (-7/5) - (-7/5 + 1/4) = 1/12 (-7/5 + 4)
40/60 k (-84/60) - (-84/60 + 15/60) = 5/60 (-84/60 + 240/60)
-3360/60 - (-69/60) = 5/60 (324/60)
-3429/60 = 1620/60
?
It doesn't work!
Anyone know what we've collectively missed over here? Thanks a bunch, guys. I appreciate all the help! I could really use an explanation of how these things work, if anyone is so inclined to help! It would help us greatly in future problems! Thanks...
My husband and I have both tried to solve this equasion, and still can't match it to the answer book. Can anyone out there explain how we can put the answer back into the problem and it doesn't work out for us? What step are we missing here?
2/3 k - (k + 1/4) = 1/12 (k + 4)
40/60 k - (k + 15/60) = 5/60 (k + 240/60)
Eventually we solved :
k = -7/5, as the answer book said we should.
When we put k = -7/5 back into the equasion, it didnt work. Let me show you...
2/3 (-7/5) - (-7/5 + 1/4) = 1/12 (-7/5 + 4)
40/60 k (-84/60) - (-84/60 + 15/60) = 5/60 (-84/60 + 240/60)
-3360/60 - (-69/60) = 5/60 (324/60)
-3429/60 = 1620/60
?
It doesn't work!
Anyone know what we've collectively missed over here? Thanks a bunch, guys. I appreciate all the help! I could really use an explanation of how these things work, if anyone is so inclined to help! It would help us greatly in future problems! Thanks...
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