Let’s define our variables.
Let t stand for tubes of paint and b stand for brushes.
Next, make some equations with the information provided.
3t+0.50b=16
b=2t
Next use substitution. Plug 2p in for b in the first equation.
3t+0.5(2t)=16
3t+t=16
4t=16
Divide by 4 on both sides, and t=4.
Now, we have to find the number of brushes.
Plug 4 in for t in the 2nd equation.
b=2t
b=2(4)
b=8
4 tubes of paint, 8 brushes
