Apiggy bank contains $5.45 in dimes and quarters. if the bank contains 29 coins, how many quarters are in the bank

Call the number of dimes and the number of quarters .

We know that:

and

By substitution:

There are 17 quarters in the bank.

The question doesn't ask for it but we can also show that:

There are 12 dimes in the bank.

10a^3+277a^2-132a-792

step-by-step explanation:

(2a+11)(5a-12)(foil)

=10a^2-24a+55a-132 =10a^2+31a-132

(10a^2+31a-132)(a+6)

=10a^3+60a^2+31a^2+186a^2-132a-792 =10a^3+277a^2-132a-792

i hope this is what you are looking for : )

answer: 590

step-by-step explanation: