SOLUTION: Please help me with this problem, i do not understand it at all, and can not figure out if they made 205.50 total or just from plain...A lady sold two types of pastries at the town

Algebra ->  Systems-of-equations -> SOLUTION: Please help me with this problem, i do not understand it at all, and can not figure out if they made 205.50 total or just from plain...A lady sold two types of pastries at the town      Log On


   



Question 209322: Please help me with this problem, i do not understand it at all, and can not figure out if they made 205.50 total or just from plain...A lady sold two types of pastries at the town's bake sale. Plain pastries were 35 cents each and fruit-filled pastries were 45 cents each. She sold 500 pastries total. How many plain pastries did she sell if she earned $205.50? Type in your numerical answer only
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A lady sold two types of pastries at the town's bake sale. Plain pastries were 35 cents each and fruit-filled pastries were 45 cents each. She sold 500 pastries total. How many plain pastries did she sell if she earned $205.50? Type in your numerical answer only
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Quantity Equation: p + f = 500
Value Equation:::35p+45f = 20550 cents
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Modify the equation to solve for "p":
45p + 45f = 45*500
35p + 45f = 20550
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Subtract the 2nd equation from the 1st to get:
10p = 1950
p = 195 (# of plain pastries she sold)
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Cheers,
Stan H.
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