algebra 2 doering word problems: coins. coin problems mario had $6.50, consisting of dimes and...

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ALGEBRA 2 DOERING Word Problems: Coins

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Page 1: ALGEBRA 2 DOERING Word Problems: Coins. Coin Problems Mario had $6.50, consisting of dimes and quarters, in a coin bank. The number of quarters was 10

ALGEBRA 2DOERING

Word Problems: Coins

Page 2: ALGEBRA 2 DOERING Word Problems: Coins. Coin Problems Mario had $6.50, consisting of dimes and quarters, in a coin bank. The number of quarters was 10

Coin Problems

Mario had $6.50, consisting of dimes and quarters, in a coin bank. The number of quarters was 10 less than twice the number of dimes. How many of each coin did he have?

Kind of Coin

Number of Coins

Value of each coin in cents

Total value in

cents

Dime d 10 10d

Quarter q 25 25q

Page 3: ALGEBRA 2 DOERING Word Problems: Coins. Coin Problems Mario had $6.50, consisting of dimes and quarters, in a coin bank. The number of quarters was 10

Coin Problems

Total value of the coins: 10d + 25q = 650

Relationship between number of each coin: q = 2d – 10

These are your two equations.

Page 4: ALGEBRA 2 DOERING Word Problems: Coins. Coin Problems Mario had $6.50, consisting of dimes and quarters, in a coin bank. The number of quarters was 10

Coin Problems

Irene has $4.50 in her coin bank in nickels and dimes. The number of dimes is twice the numbers of nickels. How many of each type does Irene have?

Rae has $5.70 in quarters and dimes. The number of quarters is 6 more than the number of dimes. How many of each kind does Rae have?

Page 5: ALGEBRA 2 DOERING Word Problems: Coins. Coin Problems Mario had $6.50, consisting of dimes and quarters, in a coin bank. The number of quarters was 10

Coin Problems

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