Originally Posted by foofergutierrez
I am having major difficulties with my Alegebra, if anybody can help please hurry it's due soon! Here are my problems :
1. A triangle has three sides 3x+7, 4x-9 and 5x-6. Find the expression that represents its perimeter.
2. The quotient when 3 more than a number is divided by 3 less than that same number.
3. 6x^2y^3+9x^2y^3
3x^2y^2
I am very confused and I have to be at work in a few hours so I need HELP ASAP!
the perimeter is all the sides added together so:Originally Posted by foofergutierrez
substitute:
group like terms:
add/subtract:
3 more than a number, ( ) is divided by 3 less than a number, ( )2. The quotient when 3 more than a number is divided by 3 less than that same number.
write it out:
and that number can't be simplified
add:3.
add:
seperate the fractions:
write it out:
divide:
write it out:
voila
[edit] I can't believe you guys, answering the questions quicker than me! (except for Cap'n's answer for #3, he's a bit late[/edit]