Solve each system using matrices
-A set of 66 coins consisting of nickels, dimes, and quarters totals $8.85. The number of dimes is four more than the sum of the number of nickels and quarters. Find the number of nickels, dimes, and quarters in the set.
A) 15 nickels, 31 dimes, 20 quarters
B) 30 nickels, 11 dimes, 25 quarters
C) 12 nickels, 35 dimes, 19 quarters
D) 6 nickels, 43 dimes, 17 quarters

Question

Solve each system using matrices
-A set of 66 coins consisting of nickels, dimes, and quarters totals $8.85. The number of dimes is four more than the sum of the number of nickels and quarters. Find the number of nickels, dimes, and quarters in the set.
A) 15 nickels, 31 dimes, 20 quarters 
B) 30 nickels, 11 dimes, 25 quarters
C) 12 nickels, 35 dimes, 19 quarters 
D) 6 nickels, 43 dimes, 17 quarters

Quizplus · Accepted Answer

The Answer of Solve each system using matrices
-A set of 66 coins consisting of nickels, dimes, and quarters totals $8.85. The number of dimes is four more than the sum of the number of nickels and quarters. Find the number of nickels, dimes, and quarters in the set.
A) 15 nickels, 31 dimes, 20 quarters 
B) 30 nickels, 11 dimes, 25 quarters
C) 12 nickels, 35 dimes, 19 quarters 
D) 6 nickels, 43 dimes, 17 quarters

Solve Each System Using Matrices