SOLUTION: Harold wrote to 15 people, cost of postage was $5.64. cost of post card is .28 and cost of letter is .44. How many letters were written?

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Question 505513: Harold wrote to 15 people, cost of postage was $5.64. cost of post card is .28 and cost of letter is .44. How many letters were written?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Harold wrote to 15 people, cost of postage was $5.64. cost of post card is .28 and cost of letter is .44. How many letters were written?
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Equations:
Item Equation:::: C + L = 15 items
Value Equation::28C +44L = 564 cents
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Multiply thru the Item equation by 28 to get:
28C + 28L = 28*15
28C + 44L = 564
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Subtract and solve for "L":
16L = 144
L = 9 (# of letters written)
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Cheers,
stan H.