SOLUTION: Jan has 21 coins. All of the coins are either pennies or dimes. The coins total $.84 in all. Let p = the number of pennies and d = the number of dimes. Which of the following pair

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Jan has 21 coins. All of the coins are either pennies or dimes. The coins total $.84 in all. Let p = the number of pennies and d = the number of dimes. Which of the following pair      Log On


   



Question 673616: Jan has 21 coins. All of the coins are either pennies or dimes. The coins total $.84 in all. Let p = the number of pennies and d = the number of dimes. Which of the following pairs of equations should Jan use to determine how many coins there are of each value?
Please help me !!! thank you!

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

Jan has 21 coins. All of the coins are either pennies or dimes. The coins total $.84 in all. Let p = the number of pennies and d = the number of dimes. Which of the following pairs of equations should Jan use to determine how many coins there are of each value?

Where are the choices?

Anyway, they are: highlight_green%28system+%28p+%2B+d+=+21%2C+.01p+%2B+.1d+=+.84%29%29

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