Literal Equations

Literal Equations

Poll

Why do you think we got rid of the -5 first instead of the 2?

• It's attached to the variable.

• I feel like it.

• We solve equations using PEMDAS backwards.

Multiple Choice

Solve the equation for w:

 $A\ =lw$  

•  $w=\ A\ -\ l$  

•  $w\ =\ \frac{A}{l}$  

•  $w\ =\ A\ +l$  

•  $w\ =\ Al$  

Multiple Choice

Solve for h:

 $A\ =\ bh$  

•  $h\ =\ A\ +\ b$  

•  $h\ =\ A\ -b$  

•  $h\ =\ \frac{b}{A}$  

•  $h\ =\frac{A}{b}$  

Multiple Choice

Solve the equation for t. $\ d\ =\ rt$  

•  $t=\frac{d}{r}$  

•  $t\ =\ \frac{r}{d}$  

Multiple Choice

 $I\ =\ prt$  

Solve the equation for t.

•  $t\ =\ Ipr$  

•  $t\ =\ I\ -\ pr$  

•  $t\ =\frac{I}{pr}$  

•  $t\ =\ \frac{pr}{I}$  

Multiple Choice

 $A\ =\ \pi r^2$  

Solve for r.

•  $r\ =\sqrt{A}\pi$  

•  $r\ =A\pi^2$  

•  $r\ =\sqrt{\frac{A}{\pi}}$  

Multiple Choice

 $D\ =\ \frac{m}{v}$  

Solve for m.

•  $m=\ vD$   $\$  

•  $v=\ \frac{m}{D}$  

•  $m=\frac{D}{v}$  

•  $m=\ v\ +\ D$  

Multiple Choice

 $A=\ \frac{1}{2}bh$  

Solve for h.

•  $h\ =\ 2Ab$  

•  $h\ =\ \frac{2b}{A}$  

•  $h=\ \frac{2A}{b}$  

Multiple Choice

 $V\ =\ \frac{1}{3}Bh$  

Solve for B.

•  $B\ =\ \frac{3V}{h}$  

•  $B\ =\ \frac{1}{3}Vh$  

•  $B\ =\ \frac{3h}{V}$  

Multiple Choice

 $K\ =\ \frac{mv^2}{2}$  

Solve for m.

•  $m\ =\ \frac{2v^2}{K}$  

•  $m\ =\ \frac{2K}{v^2}$  

•  $m\ =2Kv^2$  

Multiple Choice

 $a\ =\ \frac{b\ +c}{d}$  

•  $b\ =\ da\ -\ c$  

•  $b\ =\ \frac{a}{d}-c$  

•  $b\ =\ da\ +c$