A copper mine has removed 120000 metric tons of Earth from the mine in a week.If the copper ore at the mine contains 0.7 copperhow much copper was mined during this time?

To calculate the amount of copper mined, multiply the amount of Earth removed by the copper content percentage. In this case, 120,000 metric tons * 0.7% copper = 840 metric tons of copper mined during that week.