Question

A collection of quarters and dimes is worth $18.30. There are 111 coins in all. How many of each coin are there?

How many quarters?
How many dimes?

Answer 1

@iGreen @texaschic101 @JosephCosta

Answer 2

We write a system equations.

0.25q + 0.10d = 18.30
q + d = 111

These are our two equations, where q = quarters, and d = dimes.

Answer 3

We can graph this system of equations to find the solution.

Answer 4

So what's the solution? @iQueen

Answer 5

43 Quarters ? 63 Dimes ? @iGreen

Answer 6

Yep!

Answer 7

@iQueen

Answer 8

Can you help me with one more? @iGreen