sajanpatel823 sajanpatel823
  • 04-09-2017
  • Mathematics
contestada

Hector is 22 years older than his sister.in 5 year,he will be 3 times as old as she will be.how old are hector and his sister today?

Respuesta :

kphung76127
kphung76127 kphung76127
  • 04-09-2017
Hector is h. Sister is s.
h-22=s
h+5= 3(s+5)

Plug in s into the second equation
h+5=3(h-22+5)
h+5= 3(h-17)
h+5=3h-51
h+56=3h
56=2h
28=h

Final answer: Hector-28, Sister-6
Answer Link
Аноним Аноним
  • 04-09-2017
Hector=27
His sister=9
Answer Link

Otras preguntas

Which equation shows the quadratic formula used correctly to solve 7x2 = 9 + x for x?
a projectile with an initial velocity of 48 feet per second is launched from a building 190 feet tall. the path of the projectile is modeled using the equation
identify the choice that best describes a memo. a. supplies shared across more than one company b. language used within a certain field or industry c. important
How often should adult tetanus and diphtheria vaccination/booster be repeated?
Which of the following is a germanic language? a. spanish b. italian c. french d. english
who do yall want to be president? a.trump b.hilary c.no one
A clock radio is rated as 30 w of power output. if the radio also draws 30 w at 120 v, which will the current draw be?
Saudi Arabia's foreign policy is best described as
solve the system of equations using substitution. y = 4x 6 y = 2x (–3, –6) (6, 3) (3, 6) (1, 2)
someone please help me!!!