If LM=3x+7 and BC=7x+6 then LM=?
The answer to thise question is 31, LM=31 but how did they solve it?
2007-01-21 09:52:36 · 3 answers · asked by Lonnie 1 in Science & Mathematics ➔ Mathematics
heres the question
This is in a Geometry book
but it says USe Algebra to solve
the question is
If LM=3x+7 and BC=7x+6 then what does LM =?
the answer is 31, but I am wondering how they got that answer
2007-01-21 10:09:06 · update #1
The question cannot be answered with the information given.
If, however, we were told that BC = 2*LM, then:
2(3x+7) = 7x+6
6x +14 = 7x + 6
x=8
So LM = 3*8 +7 = 24 + 7 = 31
Are you sure you gave all the data?
2007-01-21 10:26:46 · answer #1 · answered by ironduke8159 7 · 0⤊ 0⤋
There must be missing information. No relationship is given connecting L or M to B or C.
2007-01-21 18:09:12 · answer #2 · answered by S. B. 6 · 0⤊ 0⤋
There is something missing. If you have no clue on BC, forget it.
2007-01-21 18:04:44 · answer #3 · answered by gianlino 7 · 0⤊ 0⤋