Using a very precise measuring device, Dr. Calvin measured the thickness of a piece of metal to be 0.00064 of a meter. Dr. Amos measured another piece to be 2.5 * 10-5 of a meter thick.

If the doctors put the two pieces of metal on top of each other, the new piece of metal would be

__?__*10^-4 of a meter thick.

Question

Using a very precise measuring device, Dr. Calvin measured the thickness of a piece of metal to be 0.00064 of a meter. Dr. Amos measured another piece to be 2.5 * 10-5 of a meter thick.

If the doctors put the two pieces of metal on top of each other, the new piece of metal would be

__?__*10^-4 of a meter thick.

wolf1728 · Answer

0.00064 of a meter =
6.4 x 10^-4 meters plus 
  .25 x 10^-4 meters equals
6.65 x 10^-4 meters