Algebra problem! Please Help.?
Nora has 6 coins of the same kind. One thirty cent stamp and three of the coins have the same value. What type of coin does she have? (Type in penny, nickel, quarter, dime, half dollar or dollar.) Show all steps or reasoning used.
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uh isn't it a dime?
If I'm right then I think it's too simple to explain.
I didn't understand your question fully honestly so I don't know.
Write what you know.
Let x = value of unknown coin
Given: Nora has 6 coins of the same kind.
Means: 6 * x = 6x = value of 6 coins
Given: One thirty cent stamp and three of the coins have the same value.
Means: value of $0.31 stamp plus 3 of the coins = value of 6 coins ===> 0.30 + 3x = 6x
Solve.
0.30 + 3x = 6x
0.30 = 6x - 3x
0.30 = 3x
0.30 / 3 = 3x / 3
0.10 = x
A dime is worth $0.10; therefore, Nora has dimes.
ANSWER: Nora has dimes.