Respuesta :

Answer:

see the explanation

Step-by-step explanation:

we know that

To find out the ratio between two values divide one value by the other value

Let

x ----> the amount in dollars

y ---> the time in minutes

so

[tex]ratio=\frac{x}{y}[/tex]

substitute the given values

[tex]\frac{280}{7}\ \frac{\$}{min}=\$40\ per\ minute[/tex]

therefore

The new unit is [tex]\frac{dollars}{minute}[/tex]

Answer:

40$/min

Step-by-step explanation:

280=7x

40=x