# Geologists in Antarctica find an average of 7 meteorite fragments in every 500 tons of gravel they sift through. How much gravel must they sift through in order to get 100 fragments?

$7142.86$ tons
$7$ fragments $= 500$ tons of gravel.
$100$ fragments = $\frac{500}{7} \cdot 100 = 7142.86$ tons of gravel.