SOLUTION: jenna has a total of 23 coins, made up of dimes and nickels. if she has a \$1.90, how many nickels and dimes does she have?

Algebra ->  Algebra  -> Polynomials-and-rational-expressions -> SOLUTION: jenna has a total of 23 coins, made up of dimes and nickels. if she has a \$1.90, how many nickels and dimes does she have?      Log On

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 Click here to see ALL problems on Polynomials-and-rational-expressions Question 461485: jenna has a total of 23 coins, made up of dimes and nickels. if she has a \$1.90, how many nickels and dimes does she have?Answer by stanbon(57377)   (Show Source): You can put this solution on YOUR website!jenna has a total of 23 coins, made up of dimes and nickels. if she has a \$1.90, how many nickels and dimes does she have? ----- Equations: d + n = 23 coins 10d+5n=190 cents ----------------------- Divide thru the lower equation by 5: ------ d + n = 23 2d + n = 38 ---- Subtract and solve for "d": d = 15 (# of dimes) ---- Solve for "n": --- d + n = 23 15 + n = 23 n = 8 (# of nickels) ------------------------ Cheers, Stan H. =================