nisey3 nisey3
  • 16-05-2016
  • Mathematics
contestada

Sarah is twice as old as her youngest brother if the difference between their ages is 15 years how old is her youngest brother

Respuesta :

cutelion918
cutelion918 cutelion918
  • 16-05-2016
He is 15 years old.
You would set up a system of equations
S = Sarah
Y = Youngest brother

S = 2Y
S-Y= 15

Substitute 2Y for S
So 2Y-Y= 15
Y= 15
and that's your answer :-)
Answer Link

Otras preguntas

Each of the four inner-planets-Mercury, Venus, Earth and Mars (has/have) a rocky core. a. has b. have
why is the ocean blue
According to the 1907 Gentlemen’s Agreement between the United States and Japan,
Select the correct product. (a + 8)(b + 3)
What is the measure of angle CED? There are two triangles labeled ABC and DCE with a common vertex C. In triangle ABC, angle BAC is labeled as m, and angle ABC
what is 22/400 in simplest form?
The sun’s energy, which supports life, is transmitted to Earth in the form of
Which lines in the poem express the view that death is an enviable state that frees the departed from the miseries of the body and old age? Farewell, thou chil
Help me find the answer
A nitride ion has 7 protons, 8 neutrons, and 10 electrons. What is the overall charge on this ion?