strawberrypopcorn
strawberrypopcorn strawberrypopcorn
  • 01-06-2018
  • Mathematics
contestada

The ratio of Lily's age to Fanny's age is 1:2 now. In 9 years' time,the ratio of Lily's age to Fanny's age become 3:5. How old is Lily now?

Respuesta :

mkryukova19 mkryukova19
  • 01-06-2018
L -Lily's age now
F - Fanny's age now

L:F = 1:2
F=2L

(L+9) -Lily's age  in 9 years
(F+9) = (2L + 9) - Fanny's age in 9 years

(L+9) :  (2L + 9) = 3 : 5

5(L+9) =3 (2L + 9)
5L + 45 = 6L + 27
L = 18

Lily now is 18 years old.



 




Answer Link
AshKetchum22303
AshKetchum22303 AshKetchum22303
  • 01-06-2018
L=1F=2L is half that of F
9 years later
L=3F=5
L is 60% that of L's ageI think it's 10 bc there has to be at least 9 years old

Answer Link

Otras preguntas

If a cheetah is a big cat than what else is a big cat
Grace makes $2,200 per month. She spends $300 on credit card payments, $120 per month for a furniture purchase, and $450 on an auto loan. Does she have excessiv
At the start of A Midsummer Night's Dream, why can't Hermia marry Lysander? A. She is in love with Demetrius. B. Lysander does not love her. C. Her father do
a baseball team played 35 games and won 4/7 of them how many games were won and how many games are lost?
What were the effects of the Magna Carta on English government?
Is rhombus a parallelogram?
How did racism affect the status of Africans in America?
What does the oxygen compositional layer of the atmosphere do
How many meters are 60 km equal to
What is 307,495 rounded to in the nearest thousand ? A) 307,400 B) 310,000 C)308,000 D)307,000