taviabedonie101 taviabedonie101
  • 02-10-2018
  • Mathematics
contestada

Janet is 3 yrs older than her sister julie. Janet brother is eight yrs younger than their sister julie. The sum of all their ages is 55 yrs

Respuesta :

tramserran
tramserran tramserran
  • 02-10-2018

Janet: x + 3

Julie: x

brother: x - 8

Janet + Julie + brother = sum

x + 3  +   x     +   x - 8    =  55

3x - 5 = 55

    +5   +5

3x      = 60

[tex]\frac{3x}{3} = \frac{60}{3}[/tex]

x = 20

Janet: x + 3   ⇒   (20) + 3   = 23

brother: x - 8   ⇒   (20) - 8   = 12

Answer: Janet=23, Julie=20, brother=12

Answer Link

Otras preguntas

Whats the equation of a circle centered at (7,1) that passes through (-2,10)
the resultant resistance of two resistance wires in series combination is 108 ohm and in parallel combination is 24 ohm. find the value of individual resistance
you are facing east. you turn left, then left again, then about face, then right. which direction are you finally facing?
How do I Stargaze? Please help :)
What restriction may be necessary to the domain and range of linear equations?
What is nth term for 0 6 24 54 96?
Could you tell me what Are Spores?
The sum of two numbers is 44.The larger number is 20 more than the smaller number. What are the numbers?
1. What are the next three terms in the sequence?-1 ,9 ,19 ,29 . . .A. 38, 37, 32B. 40, 51, 62C. 39, 49 , 59D. 38, 47, 562. What are the next three terms of the
simplify p8/p2can you help me with this question...anyonnnneee...????