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

sonya can walk 6 kilometers in 3 hours. If she has to walk 10 kilometers, how much time will it take her?
The body system seen here protects internal structures, provides support, and allows for movement. But this system does not work alone. In order for humans to m
Which of the following formulas is correct for the process of cellular respiration? Question 4 options: A) glucose + carbon dioxide --> water + oxygen + en
Divide. –48 ÷ 8 a. –40 b. –6 c. 6 d. 40
Which problem will have the greater quotient, 376.0 divided by 92 OR 376 divided by 93.01? Explain how you know logically
Does the power of judicial review necessarily lead to judicial supremacy? ;)
what is 8×9 tell me plzzz
Type of cell that does not have a well defined nuclei
.....what crime did I commit to deserve this? what feeling is most clearly expressed in the lines of poetry found at angel island? a: confusion b: ang
I don't how to solve this equation -3(4x-5y 6) 8x-9