# SOLUTION: DirectionsL: Solve the the given variable. (1) D= t^2 + vt (for v) (2)V= pie r^2 h ( for h) (3) P= 2l +2w (for w) (4) P= 1/rt (for t)

Algebra ->  Algebra  -> Expressions-with-variables -> SOLUTION: DirectionsL: Solve the the given variable. (1) D= t^2 + vt (for v) (2)V= pie r^2 h ( for h) (3) P= 2l +2w (for w) (4) P= 1/rt (for t)       Log On

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 Algebra: Expressions involving variables, substitution Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Expressions-with-variables Question 65503This question is from textbook Algebra one : DirectionsL: Solve the the given variable. (1) D= t^2 + vt (for v) (2)V= pie r^2 h ( for h) (3) P= 2l +2w (for w) (4) P= 1/rt (for t) This question is from textbook Algebra one Answer by ptaylor(2048)   (Show Source): You can put this solution on YOUR website!DirectionsL: Solve the the given variable. (1) D= t^2 + vt (for v) Subtract t^2 from both sides D-t^2=vt+t^2-t^2 d-t^2=vt divide both sides by t (D-t^2)/t=(vt)/t so v=(D-t^2)/t (2)V= pie r^2 h ( for h) Divide both sides by (pi)(r^2) V/((pi)(r^2))=((pi)(r^2)(h))/((pi)(r^2))=h so h=V/((pi)(r^2)) (3) P= 2l +2w (for w) Subtract 2l from both sides P-2l=2l+2w-2l P-2l=2w Divide both sides by 2 (P-2l)/2=w or w=(P-2l)/2 (4) P= 1/rt (for t) Multiply both sides by rt Prt=1((rt)/rt)=1 (probably should be i and not 1). Divide both sides by Pr t=i/Pr The formula, I=PRT, is the simple interest formula: Interest=(Principle)(rate)(time) Happy holidays----ptaylor