SOLUTION: betty is twice as old as cathy was two years ago. the difference of their present age is 7. find the age of betty now.

SOLUTION: betty is twice as old as cathy was two years ago. the difference of their present age is 7. find the age of betty now.

Algebra.Com

Question 805088: betty is twice as old as cathy was two years ago. the difference of their present age is 7. find the age of betty now.
Answer by tommyt3rd(5050) (Show Source): You can put this solution on YOUR website!
1) B=2(C-2)=2C-4
2) B-C=7

B=C+7

so that
C+7=2C-4
7+4=2C-C
C=11
thus

B=18
RELATED QUESTIONS
Igi is now twice as old as Roni's present age. Two years ago, Betty was three times as... (answered by stanbon,Edwin McCravy)

Betty's present age is twice Roni's present age. Two years ago, Betty was three times as... (answered by bucky,Nate)

Betty's present age is twice Roni's present age. Two years ago, Betty was three times as... (answered by stanbon)

Ann is twice as old as Jim was two years ago. The difference in their present age is 7.... (answered by chibisan)

Question: Albert is twice as old as Betty. Five years ago, Albert was twice as old as... (answered by ikleyn)

Alice is 4 years younger than Betty and Carl is 3 times as old as Alice. Five years ago,... (answered by solver91311)

Twenty-five years ago, Betty was five more than one-third as old as Steve was. Today,... (answered by josgarithmetic)

Nono is Five years older than his twin sisters. The sum of the ages of the twins three... (answered by lwsshak3)

Cody is twice as old as Evan and seven years ago the sum of their age was 7. Find the age (answered by lwsshak3)