Suppose a patient weighing 104 pounds requires 156 ml of medicine what is it weight of a patient requires 207 milligrams of medicine

This is a proportion problem, setting up the proportion is the hard part, but once you get that, the calculations are easy.

So, lets set one up

(Let x = the weight of the patient)

Now, Just cross multiply and solve.

104*207 = 156 *x

21528 = 156x

138 = x

The patient requiring 207 miligrams of medicine weighs 138 lbs.

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b