SOLUTION: A scale on a map shows 9 cm:6 km. On the map the distance from New york to baltimore is 18 cm .The distance from baltimore to philadelphia is 4.5 cm . If you want to travel from N

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: A scale on a map shows 9 cm:6 km. On the map the distance from New york to baltimore is 18 cm .The distance from baltimore to philadelphia is 4.5 cm . If you want to travel from N      Log On

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Question 1092542: A scale on a map shows 9 cm:6 km. On the map the distance from New york to baltimore is 18 cm .The distance from baltimore to philadelphia is 4.5 cm . If you want to travel from New york, to Baltimore,to philadelphia how far would it be
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+9%2F6+=+18%2Fd%5B1%5D+
+3%2F2+=+18%2Fd%5B1%5D+
Multiply both sides by +2d%5B1%5D+
+3d%5B1%5D+=+36+
+d%5B1%5D+=+12+ km
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+9%2F6+=+4.5%2Fd%5B2%5D+
+3%2F2+=+4.5%2Fd%5B2%5D+
+3d%5B2%5D+=+4.5%2A2+
+3d%5B2%5D+=+9+
+d%5B2%5D+=+3+ km
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+d%5B1%5D+%2B+d%5B2%5D+=+12+%2B+3+
+d%5B1%5D+%2B+d%5B2%5D+=+15+
15 km