Friday

January 30, 2015

January 30, 2015

Posted by **HELP!!!** on Saturday, April 30, 2011 at 2:43am.

- Math -
**Jai**, Saturday, April 30, 2011 at 3:51amfrom the first statement, it implies that Dominic is 8 years older than his sister.

first we represent unknowns using variables:

let x = sister's age

let x+8 = Dominic's age

since the sum of their ages is 56,

x + (x + 8) = 56

then we solve for x:

2x + 8 = 56

2x = 48

x = 24 (sister's age)

x+8 = 32 (Dominic's age)

hope this helps~ :)

**Answer this Question**

**Related Questions**

math - Mr.Edwards is now three times as old as his daughter, in 15 years' time ...

math - A. A woman was 30 years old when her daughter was born.Her age is now 6 ...

MATH - 1. A father is three times as old as his son. Five years ago the sum of ...

math - i never can do word problems....please help... i got 7 of them.....these ...

9th grade math word problems - i never can do word problems....please help... i ...

Math - 2x represents that Clyde is twice (2 times) as old as Bonnie. 6 years ...

Algebra II - Sue is three times as old as her sister. In one year from now, ...

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

math - 1. Lisa is 15 years old and her father is 40. How many years ago was the ...

math - When a woman is as old as her father is now, she will be five times as ...