SOLUTION: Two rolls of carpet are together worth �574. The first roll costs �8 per metre. The second which is 7m longer than the first costs �7 per metre. How many metres wre there in each r

Question 970686: Two rolls of carpet are together worth �574. The first roll costs �8 per metre. The second which is 7m longer than the first costs �7 per metre. How many metres wre there in each roll? Need equation to work this out please.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Two rolls of carpet are together worth �574.
The first roll costs �8 per metre.
Quantity:: x metres
Value:: L 8x
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The second which is 7m longer than the first costs �7 per metre.
Quantity:: x+7 metres
Value:: L(7x+49)
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How many metres wre there in each roll? Need equation to work this out please.
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Value Equation:
8x + 7x+49 = 574
15x = 525
x = 35 metres (amt of L8 carpet)
x+7 = 42 metres (amt of L7 carpet)
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Cheers,
Stan H.
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