SOLUTION: Seven years ago Fatima was six times as old as Bernice. In one year,she will only be twice as old as Bernice.What will be Fatima's current age?
Question 950102: Seven years ago Fatima was six times as old as Bernice. In one year,she will only be twice as old as Bernice.What will be Fatima's current age? Answer by macston(5194) (Show Source):
You can put this solution on YOUR website! F=Fatima's age; B=Bernice's age
F+1=2(B+1)
F+1=2B+2 Subtract 1 from each side.
F=2B+1
F-7 years=6(B-7 years) Substitute for F
2B+1-7years=6B-42 years Subtract 2B from each side.
-6 years=4B-42 years Add 42 years to each side.
36 years=4B Divide each sidde by 4.
9 years=B Bernice is 9 years old.
F+1 year=2(B+1 year)
F+1 year=2(9 years+1 year)
F+1 year=20 years Subtract year from each side
F=19 years ANSWER: Fatima is 19 years old.
CHECK:
7 years ago Fatima was 6 times as old as Bernice
F-7 years=6(B-7 years)
19 years-7 years=6(9 years-7years)
12 years=6(2 years)
12 years=12 years
