No, it isn't. Show what you did.I do that and get 15.79. That can't be right.
One sixth of his life is L/6. What's one eighth of his life? What's the total?(1/6)+(1/8)+(1/2)+15
The total is his whole life. That's L. What's the sum that is equal to L? You are doing fine so far. Write the sum that is equal to L.Going by your logic one eighth would be L/8, I'm not sure what the total is..
Close. What about the 15? Where does that go?L/6+L/8+L/2=L
Like that?
Yes! Now can you use algebra to solve for L? It is pretty close to 70.L/6+l/8+l/2+15=l