SOLUTION: I needs to cut four shelves from a board that is 2.5 meters long. The second shelf is 18 centimeters longer than twice the length of the first shelf. The third shelf is 12 centimet

Question 962143: I needs to cut four shelves from a board that is 2.5 meters long. The second shelf is 18 centimeters longer than twice the length of the first shelf. The third shelf is 12 centimeters shorter than the first shelf. The remaining shelf is 4 centimeters longer than the first shelf. If I must use the entire 2.5 meter board for the shelves, what is the length of the second shelf?
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
1st x
2nd 2x+18
3rd x-12
4th x+4
--------------
2.5 meters= 250 cm
x+2x+18+x-12+x+4=250
5x+10=250
5x=250-10
x=240/5
x=48cm 1st
2x+18=114cm 2nd
x-12=36cm 3rd
x+4=52cm 4th
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