# SOLUTION: Use RESCA: Lulu is three yrs. older than Pearl. In 4 yrs. time, Lulu will be twice as old as Pearl was 3 yrs. ago. Find pearl's age.

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 Question 370363: Use RESCA: Lulu is three yrs. older than Pearl. In 4 yrs. time, Lulu will be twice as old as Pearl was 3 yrs. ago. Find pearl's age.Answer by ankor@dixie-net.com(15624)   (Show Source): You can put this solution on YOUR website!Lulu is three yrs. older than Pearl. In 4 yrs. time, Lulu will be twice as old as Pearl was 3 yrs. ago. Find pearl's age. : Write an equation for each statement: "Lulu is three yrs. older than Pearl." L = P + 3 : " In 4 yrs. time, Lulu will be twice as old as Pearl was 3 yrs. ago." L + 4 = 2(P - 3) L + 4 = 2P - 6 L = 2P - 6 - 4 L = 2P - 10 From the 1st statement; replace L with (P+3) P + 3 = 2P - 10 3 + 10 = 2P - P 13 = P Pearl is 13 yrs old, obviously Lulu is 16 ; : Check solution in the statement: "In 4 yrs. time, Lulu will be twice as old as Pearl was 3 yrs. ago." 16 + 4 = 2(13 - 3) 20 = 2(10) : I have no idea what RESCA is!