SOLUTION: Lisa is 15 years old. Marcus is 49 years old. How old will they both be when Marcus is three times as old as Lisa? (Make a table to solve this problem)
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Question 449945: Lisa is 15 years old. Marcus is 49 years old. How old will they both be when Marcus is three times as old as Lisa? (Make a table to solve this problem) Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! You can make the table, but here is how I
would solve it:
How many times Lisa's age is Marcus now?
Let = number of years I want to add to both ages
so that
In 2 years, Marcus will be 3 times Lisa's age
check:
OK
For a table, you can list x, 49 + x, 15 + x, 3*(15 + x)
and x=1, x=2, x=3
