In this lesson, the problem of finding how many coins of different values a person has in their wallet is solved through the use of a chart. The chart keeps track of the type of coin, the unit value of each coin, and the number of each coin in the wallet. By setting up an equation with the total value of the coins and solving for the number of nickels, the value of the dimes can be found and the solution can be checked. The final answer is that Barb has 13 nickels and 5 dimes in her wallet.
Shows how to solve a word problem having to do with different coins and their values. This is solved with one variable, but more than one coin is defined. It is done with a chart.
How do you write an equation, solve the equation, and check your answer to coin problems in Algebra?
How do you solve a coin problem without using guess and check?
How do you make a chart to solve a coin problem?
If Barb has $1.15 in her wallet, which contains 18 coins in nickels and dimes, how many of each kind of coin does she have in her wallet?
How do you solve 5n + 10(18 - n) = 115?
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This is another great tutorial for how to figure out how many of each type of coin a person has if you know the total number of coins and the total amount of money a person has. All steps are shown in this very complete lesson.