Problema Solution
Arnold, michelle , and rory went to the store to buy things for their friends. Arnold got 3 cups of coffee , 10 dozen donuts, and 8 espressos for $ 74. michelle got 1 cup of coffee, 5 dozen donuts, and 2 espressos for $ 27. rory got 7 cups of coffee, a dozen donuts, and 5 espreessos for $ 51. cost of cup of coffee = c, cost of dozen donuts = d, and cost of espresso =e
Answer provided by our tutors
cost of cup of coffee = c,
cost of dozen donuts = d,
cost of espresso = e
3c + 10d + 8e = 74
c + 5d + 2e = 27
7c + d + 5e = 51
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click here to see the system of equations solved for c, d and e
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c = $4
d = $3
e = $4
The cost of cup of coffee is $4.
The cost of dozen donuts is $3.
The cost of espresso is $4.