Question

Kara spends $16 on tubes of paint and paint brushes. A tube of paint costs $3 and a paint brush costs $.50. Kara purchases twice as many brushes as tubes of paint. How many tubes of paint and how many brushes did she buy?

Answer 1

Answer: 3(4) + .5(8) = 16

Step-by-step explanation:Replace b with 2p in the 1st equation

3p + .50(2p) = 16

3p + 1P = 16

4p = 16

p = 16/4

p = 4 tubes of pain

then

b = 2(4)

b = 8 brushes