Question

282The number of germs in a sample can be measured by the equation f(x)=15x + 145. Temperature represents the domain of the sample while the range isthe number of germs. If a doctor wants to keep the amount of germs to be less than 300,what is the approximate domain of temperatures to keep the sample under 300?

Answer 1

The approximate domain temperature is 10

Explanation:

Given the following model function

f(x) = 15x + 145

Mathematically

15x + 145 < 300

Collect the like terms

15x < 300 - 145

15x < 155

Divide both sides by 15

15x/15 < 155/15

x < 10.33