Homework Help: math

Posted by Anonymous on Monday, January 21, 2013 at 9:29pm.

mary is x years old. it is her birthday today. her sister, sherry is 4 years older than she is. after 7 years their combined age will be 24 years write a liner=ar equation for their combined age after 7 years

math - Reiny, Monday, January 21, 2013 at 9:33pm
mary is now --- x
sherry is now --- x+4

7 years from now:
mary --- x+7
sherry --- x=4 + 7 = x+11

x+7 + x+11 = 24

I will let you solve it

Answer this Question

Related Questions

Math - Jane is x years old today. Her brother Kenny is 4 years older. After ...
Math - Mark is 11 years older than his sister. In 8 years he will be twice as ...
math - you are 6 years older than your sister she is 4 years older than your ...
algebra - A person is 3 times as old as aonther person but in 15 years she will ...
MATH - Fely is twice as old as Mary. Five years hence, she will be 10 years ...
math - alex is x years old his sister is 3 years older , togerther their age is ...
math - alex is x years old his sister is 3 years older , togerther their age is ...
math - Please help me solve this word problem. If Leah is 6 years older than her...
Math - If Ann is 6 years older than her sister, Sue, and John is 5 years older ...
Math - Ok, last question for today. :) Tammy is eight years older than Debbie. ...

For Further Reading

First Name:
School Subject:
Answer: