What is the missing value?

The missing value is 5.

Step-by-step explanation:

Given,

5x-2y = 30

And x = 8 ( as per the solution)

To find the value of y

Putting x=8 in the given equation we get,

5×8 - 2y = 30

or, 40-30 = 2y

or, 2y = 10

or, y = 10÷2

or, y = 5

Hence,

The solution will be (8,5)

1gm = 1000mg so 0.1gm = 1000mg

first, convert the weight to kg

160lb * 1kg/2.2lb = 72.7kg

next, the dose

72.7kg * 100mg/kg = 7270mg