Algebra again
posted by Avalon
I don't understand how to do this problems: Solve for the variable r, C=2PIr (PI is the pi symbol thing then r is next to it) and this problem solve for the variable l, S=B+1/2Pl
I know this is the same question, but I somewhat understand how to get the answer but I was wondering if someone could break down the steps for me. Because I am working very hard to do well on a test and I need to know the steps for the future. Thanks oh so much! :)
Answered below. You don't need to post your question again.
Respond to this Question
Similar Questions

Algebra
I don't understand how to do this problems: Solve for the variable r, C=2PIr (PI is the pi symbol thing then r is next to it) and this problem solve for the variable l, S=B+1/2Pl please help :) When you solve for a variable, you want … 
algebra
how would i work out the following problems solve each formula in terms of the given variable 1. 5d2g=9 ;g The formula A=2h(l+w) gives the lateral area a of a rectangular solids with length l, width,w and height h. 2. solve this formula … 
math solutions
solve the equation abx=cy for each of following the variable x the variable a the variable c solve the equation ay/x the variable y the variable z the variable x solve each of following for variable y 3y=ab ab=cy ayc=bx bx/y=R zy/x=b 
math (this correct)
What is the difference between an equation and an expression? 
Math
What is the difference between an equation and an expression? 
Algebra 1
Each student will be assigned a variable(mine being C) the student is to create a creature to represent that variable. The student must make 10 creatures for the variable. Then the student must make 10 additional creatures to represent … 
Math
How would you solve this problem?: x2 + y2 = 25 x2  y = 5 You have to solve for one variable either by substitution or elimination method and then use the answer to plug it in one of the equations to get the other variable. I've been 
math
how would I solve 10=7m? I don't understand how to find the variable and I use flowchart!none of my math books show me how! so how can I solve problems like these? 
Precalculus
How do you solve this problem: sin(90*  x)  cot^2(90*  x) + 1 The * is a degree symbol!! I haven't seen any problems with degrees in it, usually it's only a variable! If anyone could give me guidelines or show me … 
Algebra
There are 4 problems that I don't understand how to solve so, please help me. A numerical explanation with words explanation would be nice. Thank you tutors. Rewrite each equation so it is in the form ax + b = c or x + d/e = f, where …