If an ant walks at a rate of 0.0001 M/S, how many minutes should it take it to walk down Jane's finger-distance of 7.6 cm.
The answer is 2.6--->
but im lost in what to convert first...
Well, you can use 1 number at a time until you can move to the next one. We start with:
$\displaystyle 0.0001 \frac{m}{s}$
Now, we know that:
1 m = 100 cm, so:
$\displaystyle 100\frac{cm}{m}*(0.0001)\frac{m}{s}$
$\displaystyle = 0.01\frac{cm}{s}$
Now, we also know that:
60 s = 1 min, so:
$\displaystyle 60\frac{s}{min}*0.01\frac{cm}{s}$
$\displaystyle = .6 \frac{cm}{min}$
So, what you have to do is divide that answer into the total distance:
$\displaystyle \frac{7.6 \ cm}{.6\frac{cm}{min}}$
$\displaystyle = 7.6 \ cm*\frac{1}{.6}\frac{min}{cm}$
$\displaystyle = 12.6 \ min$
So, I got a completely different answer than you... But I'm pretty sure I didn't do anything wrong.