You and your friend are shopping for painting supplies. Your friend wants five bottles of paint and one set of paint brushes. Yo
u want seven bottles of paint and two sets of paint brushes. Each bottle of paint costs $3.69. If you and your friend’s total cost is $51.69, what is the cost of one set of paint brushes?
So your friend bought 1 set of brush and 5 bottles of paint you bought 2 brushes and 7 bottles of paint 1 bottle=3.69 friends cost+your cost=51.69 total you bought 3 brushes and 12 bottles
each bottle is 3.69 12*3.69=44.28 totalcost=51.69=3brushes+12bottles
51.69=3brushes+44.28 minus 44.28 from both sides 7.41=3brushes divide both sides by 3 2.47=1brush
