mazz8643 mazz8643
  • 14-07-2017
  • Mathematics
contestada

My sister is 15 years older than i am. the sum of our ages is 41. find our ages

Respuesta :

texaschic101
texaschic101 texaschic101
  • 14-07-2017
x = you, and y = ur sis

x + y = 41
y = x + 15

x + (x + 15) = 41
2x + 15 = 41
2x = 41 - 15
2x = 26
x = 26/2
x = 13 <== u r 13

y = x + 15
y = 13 + 15
y = 28 <== ur sis
Answer Link

Otras preguntas

Henry has a fair number pyramid with four faces and a spinner with three equal sized colored sections. what is the probability that the number pyramid will land
What is the second most prevalent gas in earth's atmosphere?
let a be an irrational number would ​ 64/a be rational or irrational???
Factor out the GCF (x^2 - 9x + 10) Factor out the GCF (4y^3 + 6y^2 + 12y)
Which of the following countries was a member of the Central Powers? Germany Belgium Italy
someone please help!
Herbert cut a piece or yarn that are each 2/3 foot long. if the yarn is 6 feet long, how many pieces of yarn did he cut?
write 29/30 as a percent
The head is ___ to the body's trunk. anterior inferior posterior superior
Which action best describes how interest groups promote change