How do I simplify (30m/s - 10m/s)/2.0s to get 10m/s²?

[xyxaprilxyx]

I haven't had any math in like 4 years and I'm very rusty. Could someone please show me a "step by step" how to solve an equation like this...

(30m/s - 10m/s)/2.0s = 10m/s^2

I forgot how to get to the answer.This example came from my book. Can someone please explain how the answer became 10m/s^2 ?



I got lost with the metere/second square

Please help

Thanks in advance.

 

[suyver]

$$\frac{(30m/s - 10m/s)}{2.0s} =$$

$$\frac{(20 m/s) }{ 2s} =$$

$$\frac{20}{2}\frac{m/s}{s} =$$

$$10 \frac{m}{s}\frac{1}{s}=$$

$$10\frac{m}{s^2}$$


Remember: $$\frac{a}{b}/c=\frac{a}{b*c}$$

 

[xyxaprilxyx]

THANKS...

that helped a lot


~April