2007-10-07 07:28:02 · 7 answers · asked by . 1 in Science & Mathematics ➔ Mathematics
60c-90=5c-3
55c=87
c=87/55
2007-10-07 07:32:08 · answer #1 · answered by chasrmck 6 · 0⤊ 0⤋
15(4c - 6) = 5c - 3; distribute the 15
60c - 90 = 5c - 3; subtract 5c
55c - 90 = -3; add 90
55c = 87; divide by 55
c = 87/55 = 1 32/55
check: both sides equal 4 10/11
2007-10-07 07:31:25 · answer #2 · answered by sfroggy5 6 · 0⤊ 0⤋
15(4c-6)=5c-3
distribute the 15
60c-90=5c-3
combine like term
55c=87
divide both sides by 55
c=(87/55) or 1.582
2007-10-07 07:34:29 · answer #3 · answered by sweety36391 2 · 0⤊ 0⤋
15*4c-15*6 = 5c -3
=> 60c-5c=-3+90
=> 55c=87
=> c=87/55
that's as far as it gets...believe me... ok then :1.5818181.......there is reason to believe that the number has no end...but whatever...
2007-10-07 07:32:29 · answer #4 · answered by Santa's little helper 2 · 0⤊ 0⤋
15(4c-6) = 5c - 3
60c-90 = 5c-3
60c-5c = 90-3
55c = 87
c =87/55
2007-10-07 07:33:17 · answer #5 · answered by notemoenough 2 · 0⤊ 0⤋
60c - 90 = 5c - 3
55c = 87
c = 87/55
2007-10-11 07:30:36 · answer #6 · answered by Como 7 · 0⤊ 0⤋
c=87/55
2007-10-07 07:32:38 · answer #7 · answered by Rutgers101 2 · 0⤊ 0⤋