a coin collection made up of pennies, nickels, and quarters contains a total of 29 coins. the number of quarters is 8 less than the number of pennies. the total face value of the coins is $1.77. how many of each denomination are there?

Question

anonymous · Answer

Do you know how to create a model for this problem?

anonymous · Answer

mm no :/

ranga · Answer

Assume there are P pennies, N nickels, Q quarters.
P + N + Q = 29  
Q = P - 8
.01*P + .05*N + 0.25*Q = 1.77

Solve for P, N and Q.

anonymous · Answer

so 1.77 is the answer?