Question

Question #34bd4

Answer 1

Solve using SoE

Explanation:

Note: (I'm going to use the USD($) sign because I don't know where the pound sign is)

I. Start by finding the equation:
A man bought a certain amount of each stamp.
So he bought...
`a $1 , b$4, and c$12` stamps.

He spent $100.
So...
`1a + 4b + 12c = 100` (Equation 1)

He bought 40 stamps
So...
`a+b+c=40` (Equation 2)

Solve using System of Equations.