SOLUTION: On Monday, Harold picked up 6 donuts and two large coffees for the office staff.He paid $5.10 On Tuesday, Melinda picked up five donuts and three large coffees for the office staff

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Question 1115959: On Monday, Harold picked up 6 donuts and two large coffees for the office staff.He paid $5.10 On Tuesday, Melinda picked up five donuts and three large coffees for the office staff. She paid $5.49 What is the cost of one donut? What is the cost of one large coffee?
The cost of one donut is $
The cost of one large coffee is $
Answer by stanbon(75887) About Me  (Show Source):
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On Monday, Harold picked up 6 donuts and two large coffees for the office staff.He paid $5.10 On Tuesday, Melinda picked up five donuts and three large coffees for the office staff. She paid $5.49
What is the cost of one donut? What is the cost of one large coffee?
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6d+2c = 510 cents
5d+3c = 549 cents
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Modify for elimination::
30d + 10c = 2550
30d + 18c = 3294
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8c = 744
c = 93 cents
The cost of one large coffee is $0.93
18d + 6c = 1530
10d + 6c = 1098
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8d = 432
d = 54 cents
The cost of one donut is $0.54
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Cheers,
Stan H.
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