SOLUTION: There are three grades of flooring adhesive. The first cost twice asmuch as the second, and the second costs three times as much the thitd. If you purchase one of each, the cost is

Algebra ->  Linear-equations -> SOLUTION: There are three grades of flooring adhesive. The first cost twice asmuch as the second, and the second costs three times as much the thitd. If you purchase one of each, the cost is      Log On


   

Question 265148: There are three grades of flooring adhesive. The first cost twice asmuch as the second, and the second costs three times as much the thitd. If you purchase one of each, the cost is $45. how muchis the most expensive adhesive?

Answer by palanisamy(496) About Me  (Show Source):
You can put this solution on YOUR website!
Let the cost of the third adhesive = $ x
Then, the cost of the second adhesive = $ 3x
the cost of the first adhesive = $ 2*3x = $ 6x
Total cost x+3x+6x = 45
10x = 45
x = 45/10
x = 4.5
So the most expensive adhesive = 6x = 6*4.5 = $ 27