Answer:
$3.90 was the cost of salami per kilogram.
Step-by-step explanation:
The question is incomplete, so the complete question is below:
[tex]Hailey\ paid\ \$13\ for\ 1\ 3/7\ kg\ of\ sliced\ salami.\ \\What\ was\ the\ cost\ per\ kilogram\ of\ salami?[/tex]
Now, to find the cost of salami per kilogram.
Cost of [tex]1\frac{3}{7}[/tex] kilogram of sliced salami = $13.
Now, to get the cost of salami per kilogram we use unitary method:
If, the cost of [tex]\frac{10}{3}[/tex] kilogram of salami = $13.
Then, the cost of 1 kilogram of salami = [tex]\frac{13}{\frac{10}{3}}[/tex]
[tex]=\frac{13}{10}\times 3[/tex]
[tex]=\frac{39}{10}[/tex]
[tex]=\$3.90.[/tex]
Therefore, $3.90 was the cost of salami per kilogram.