Question

Mrs. Haley had 5/7 of a liter of salt water. She used 1/2 of a liter for an experiment. How much salt water does Mrs. Haley have left?

Mrs. Haley had
liters of salt water left

PLEASE HELP SOON!! :))

Answer 1

Mrs. Haley had
`\mathbf{(3)/(14)}` liters of salt water left.

Explanation:

Mrs Haley has salt =
`(5)/(7)\:liter`

Mrs Haley used salt =
`(1)/(2)\:liter`

We need to find how much salt is left?

`Salt\: left = Total\: Salt - Salt\: used\\Salt\: left = (5)/(7)-(1)/(2)\\Salt\: left =(5*2-1*7)/(14) \\Salt\: left =(10-7)/(14) \\Salt\: left =(3)/(14)`

So, Mrs. Haley had
`\mathbf{(3)/(14)}` liters of salt water left.