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

WHAT IS BIGGER 3/4 OR 11/16 EXPLAIN
What is the best order-of-magnitude estimate for 58,100? a. 103 b. 104 c. 105 d. 106
What part of the country is wet and has mild winters and hot summers? A. Northeast B. Southeast C. Southwest D. Midwest
Subtract. –7 – 12 a. –19 b. –5 c. 5 d. 19
what is 432,010.1 in word form and nine hundred forty-five and thirty-five hundredths in standard form and seventy-three thousand, eight hundred ninety and one
What is 24/100 simplified
a ball bounces back .6 of its height on every bounce. if a ball dropped from 200 feet, how high does it bounce on the fifth bounce.
How did the motives of the virginia colonists differ from those of the separatists who settled in plymouth
What factor was important for the creation and maintenance of the Pax Romana?
3-2(m+4)=15 how do I do this