2. Set up the following word problem as a proportion and solve. Then write your answer as a complete sentence.
A health department estimates that 8 vials of malaria serum will treat 100 people. At this rate, how many vials are required to treat 175 people?
@mathmale

Question

2. Set up the following word problem as a proportion and solve. Then write your answer as a complete sentence.
A health department estimates that 8 vials of malaria serum will treat 100 people. At this rate, how many vials are required to treat 175 people?
@mathmale

mathmale · Answer

The question can be reworded a bit:

"If 8 vials of serum will treat 100 people, how many vials are necessary to treat 175 people?"

mathmale · Answer

Obviously, if you have more people, you need more medication / serum.

mathmale · Answer

Let x represent the number of vials needed to treat 175 people.

then $$\frac{ x }{ 8 }$$ is the ratio / proportion of the numbers of vials.

mathmale · Answer

Write the proportion of the # of people:  175/100.

anonymous · Answer

wouldnt there be 7 people

mathmale · Answer

Equate the two ratios.  Solve the equation for x.

anonymous · Answer

vials i mean

anonymous · Answer

im confused

mathmale · Answer

Vials are glass containers, like tubes with their bottom ends closed.

anonymous · Answer

i know that i mean the problem

mathmale · Answer

The pertinent equation is $$\frac{ x }{ 8 }=\frac{ 175 }{ 100 }$$    Using cross multiplication, solve this for x.  That will tell you how many 'vials' of medication are needed to treat 175 people.
Sorry, Purdy, but I have to get off the 'Net now;   I'll be back later this evening.