madisonrendler4117 madisonrendler4117
  • 02-02-2018
  • Mathematics
contestada

Mel is 3 years older than rahfat and aurelio is twice as old as mel. the sum of their age is 57. how old is mel?

Respuesta :

texaschic101
texaschic101 texaschic101
  • 02-02-2018
m = r + 3
a = 2m......a = 2(r + 3).....a = 2r + 6
m + r + a = 57

(r + 3) + r + (2r + 6) = 57
4r + 9 = 57
4r = 57 - 9
4r = 48
r = 48/4
r = 12.......rahfat is 12

a = 2r + 6
a = 2(12) + 6
a = 24 + 6
a = 30.......aurello is 30

m = r + 3
m = 12 + 3
m = 15 <=== mel is 15
Answer Link
gcoggyrritfvyiyez
gcoggyrritfvyiyez gcoggyrritfvyiyez
  • 02-02-2018
M=15 years old I think
Answer Link

Otras preguntas

Toby is making a picture graph.Each picture of a book is equal to 2 books he has read. The row for Month 1 has 3 pictures of books. How many books did Toby read
A. m∠R = m∠S B. m∠R + m∠S = 180° C. m∠R + m∠S = m∠P + m∠ this is to that to.
the range in size of most atomic radii is approximately
Which group led the protest to boycott British Tea?
you can give numerical ratings to possible career choices to help determine if they are right for you by creating a(n)_____. a. letter of recommendation b. indi
By 900 ce, kiev controlled the large area between the baltic sea and the black sea, which made kiev
Read the excerpt from The Odyssey. “Stranger, you are no longer what you were just now! Your cloak is new; even your skin! You are one of the gods who rule the
Who sailed around the southern tip of Africa in 1488?
this classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins
explain this to me thanks