londahbbupza londahbbupza

02-10-2016
Mathematics

contestada

rob is 5 years older than john,mark is twice as old as john the total of their ages is 65

Respuesta :

SamreenAmdani SamreenAmdani

02-10-2016

John is 15
Rob is 20
Mark is 30

x = John's age
x + 5 = Rob's age
2x = Mark's age

x + x + 5 + 2x = 65
4x + 5 = 65
-5 -5
4x = 60
/4 /4
x = 15
15 + 5 = 20
2(15) = 30

Answer Link

Otras preguntas

A DUI conviction remains on the driver’s record for ______ years. A.15 B.20 C.50 D.75

Clause in the constitution that allows Congress to do all of their powers

Thanks for the help if answer :) Which of the following describes the electron sharing between hydrogen and flourine? A. Hydrogen and Florine share one electron

Which is the least reliable source of safety information? A. Medical Blog B. Government Organization C. Medical Professional D. Medical Journal

whats an equation slop 0.5, passes through(6,4)

what is 4.1427 rounded to the nearest thousandth

In the movie The Patriot Why are the boys so excited to read the mail

What does the a small MAD tell you about a set of data

If a number is divisible by two then the number is even

How many different arrangements of the letters in the word BETTER are there?