SOLUTION: 36.) Melinda�s father pays her 10 cents for each right answer on her algebra homework, and he collects 7 cents from her for each wrong answer. After her 34 problems were corrected

Question 649276: 36.) Melinda�s father pays her 10 cents for each right answer on her algebra homework, and he collects 7 cents from her for each wrong answer. After her 34 problems were corrected, they did not owe each other anything.
a. If c stands for the number of right answers, write an expression for the number of wrong answers.
b. Write an expression for the money Melinda collects for her right answers.

c. Write an expression for the money Melinda owes her father for her wrong answers.

d. Write an equation for this problem using your answers from a, b, and c.

Found 2 solutions by stanbon, MathTherapy:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Melinda�s father pays her 10 cents for each right answer on her algebra homework, and he collects 7 cents from her for each wrong answer. After her 34 problems were corrected, they did not owe each other anything.
a. If c stands for the number of right answers, write an expression for the money value of wrong answers.::: 7c cents
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b. Write an expression for the money Melinda collects for her right answers.
::: 10r cents
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c. Write an expression for the money Melinda owes her father for her wrong answers.
::: 7c
-----
d. Write an equation for this problem using your answers from a, b, and c.
Father owes Melinda 10r-7c
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Cheers,
Stan H.
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Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!

36.) Melinda�s father pays her 10 cents for each right answer on her algebra homework, and he collects 7 cents from her for each wrong answer. After her 34 problems were corrected, they did not owe each other anything.
a. If c stands for the number of right answers, write an expression for the number of wrong answers.
b. Write an expression for the money Melinda collects for her right answers.

c. Write an expression for the money Melinda owes her father for her wrong answers.

d. Write an equation for this problem using your answers from a, b, and c.

Let amount of correct answers be C
a)

b)

c) .07(34 - C), or

d) .1C � (2.38 - .07C) = 0 ---- .1C � 2.38 + .07C = 0 -----

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