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Lesson 3 ~ Coin Problems

Example 83.3. Example 83.2. Lesson 3 ~ Coin Problems. Note. Example 83.1. Note.

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Lesson 3 ~ Coin Problems

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  1. Example 83.3 Example 83.2 Lesson 3~Coin Problems Note Example 83.1

  2. Note When we solve a problem, we read the problem and search for statements about quantities that are equal. Each time we find a statement of equality, we write it as an algebraic equation. When we have the same number of independent equations as we have variables, we solve the equations by using substitution, elimination, or by graphing.

  3. Example 83.1 Jack and Betty have 28 coins that are nickels and dimes. If the value of the coins is $1.95, how many coins of each type do they have? They have 17 nickels and 11 dimes.

  4. Example 83.2 Ming has $4.45 in quarters and dimes. She has 8 more quarters than dimes. How many coins of each type does she have? Ming has 15 quarters and 7 dimes.

  5. Example 83.3 Orlando had a hoard of 22 nickels and dimes whose value was $1.35. How many coins of each type did he have? Orlando has 17 nickels and 5 dimes.

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