Question

Anna is using a 6 1/2 pound bag of salt to Pour on snow. After using the salt 2/5 of the bag remains. How many pounds of salt did Anna use to pour on snow

Answer 1

If after using the salt, 2/5 of the salt remains, it means that Anna used 3/5 of the salt in the bag.

A bag contains 6 1/2 pounds of salt, convert this to a fractional number:

`6(1)/(2)=6+(1)/(2)=(13)/(2)`

To find how many pounds of salt she used, multiply 3/5 by the total amount of salt in the bag, this is:

`(3)/(5)\cdot(13)/(2)=(39)/(10)`

She used 39/10 pounds of salt.