Algebra help.

Question

Brian bought 20 donuts for $15.50. Glazed donuts cost $0.50 each, and filled donuts cost $1.00 each. How many of each kind did he buy?

Answer 1

Glazed donuts = G

Filled donuts = F

The total number of donuts is 20

We are told that the price per glazed donut is $0.5 and the price per filled donut is $1.00.

So, two equations that need to be solved are :

F + G = 20

F + 0.5G = 15.50

You can use substitution to solve this system.