You have vials containing 250 milligrams of aminophylline in 10 milliliters. How many milliliters are required to administer 300 milligrams? options: 10 milliliters 12 milliliters 15 milliliters 25 milliliters

12 milliliters

Step-by-step explanation:

Proportions

Each vial contains 250 milligrams of aminophylline in 10 milliliters. This means the concentration of aminophylline in the vials is 250/10 = 25 milligrams/milliliter.

To administer 300 milligrams of aminophylline, we need to find the number of milliliters according to the concentration calculated above.

If each milliliter adds up to 25 milligrams, then to have 300 milligrams, 300/25 = 12 milliliters of aminophylline vials are needed.

12 milliliters

the transverse axis of a hyperbola is the line that contains the two vertices and the two focuses.

in this example (hyperbola of equation x^2/2 - y^2/4 = 1), the transverse axis is the  x-axis  . 

step-by-step explanation:

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m