Tuesday

March 31, 2015

March 31, 2015

Posted by **xavier** on Thursday, March 22, 2012 at 6:58am.

- maths -
**Reiny**, Thursday, March 22, 2012 at 9:51ampresent ages:

Susan --- x

John ---- 3x

Four years from now:

Susan -- x+4

John --- 3x + 4

3x+4 = x+4 + 18

2x = 18

x = 9

Susan is now 9 and John is now 27

check:

in four years:

Susan = 13, John is 31

is 31 greater than 13 by 18 ? YES!!

**Answer this Question**

**Related Questions**

math - A. John is now 10 years older than Marcus. Three times John's age 5 years...

math - A. Brad is 12 years older than Sam . If Brad were 8 years older than he ...

Algebra - How do I work this problem? "Susan is 9 years older than Karen. In 10 ...

Math - Loretta's age now is twice John's age five years ago. In three years the ...

Maths - The ratio John's age to Ryan's age is 3:1 now . 25 years later , the ...

Maths - The ratio John's age to Ryan's age is 3:1 now . 25 years later , the ...

Mathematics - A half of what John's age was 4 years ago is equal to one third of...

Math - The sum of John's age and twice of his son's age is 56. In 8 years time, ...

math - mr. cruz is 3 years older. he would be the same age as mr. john. mr. john...

Math - Find the ages of John and Mary if four times John's age equals three ...