Monday
March 30, 2015

Homework Help: Algebra - 2 more questions... ^^

Posted by Jason on Wednesday, November 28, 2007 at 10:08pm.

Thank you for helping on the other problem, but could you maybe explain how I should solve these two problems?

1. In 1985, Barry was 13 years old and his father was 43. In what year will Barry's age be two-fifths of his father's age?

2. The length of a certain rectangle is 20m and the length increased by 100m, the perimeter of the new rectangle would be twice the perimeter of the original rectangle. What are the dimensions of the original rectangle?

I did not get the fist problem at all, but for the 2nd problem I started by saying :
L=w+20 >>> l+w+20=P &&&
2(L+100)+2(w-20)=2P

I then plugged things in... and... :(

please help.

once again,
jason.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Algebra - Here is the problem: A two-digit number is eight times the sum of its ...
Algebra - Here is the problem: A two-digit number is eight times the sum of its ...
arithmetic - Barry and Steve are good friends. Barry wants to buy a new computer...
Math - The total age of 4 brothers and sisters is 38. Barry is two years older ...
math - Barry heard in his Personal Finance class that he should start investing ...
math - In a 3 hour examination of 350 questions, there are 50 mathematics ...
Algebra 1 - i need help working these correctly! 1. Are the inequalities 3x-4<...
Math - Barry is 8 years older than his sister. In 3 years, he will be twice as ...
college algebra - 4. The yearly cost T, in thousands of dollars, of tuition and ...
Math - Could someone please help me solve this problem, the age numbers that I ...

Members