Hundreds and tens....
I hope this helped
2(x - 16) + 12 = 30
2x - 32 + 12 = 30
2x - 20 = 30
2x = 30 + 20
2x = 50
x = 50/2
x = 25 <=== the temp was 25 at midnight
The spread of the disease will take a time 100 days to reach 2,500 <em>infected</em> people.
<h3>How to find the number of infected people at a certain time</h3>
In this problem we have a <em>radical</em> equation that represents the number of <em>infected</em> people as a function of time, we are suppose to find the time when that number will be 2,500 by <em>algebra</em> properties: (N = 2,500)
2,500 = 250 · √t
√t = 2,500 / 250
√t = 10
t = 10²
t = 100
The spread of the disease will take a time 100 days to reach 2,500 <em>infected</em> people.
<h3>Remark </h3>
The statement is poorly formatted and presents typing mistakes, correct form is shown below:
<em>The spread of a disease can be modeled as N(t) = 250 · √t, where N is the number of infected people, and t is time (in days). How long will it take until the number of infected people reaches 2,500?</em>
To learn more on radical equations: brainly.com/question/11631690
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Answer:
-4
Step-by-step explanation:
Answer:
The answer is -3.
Step-by-step explanation:
3x²-7x+1
=3(1)²-7(1)+1
=3-7+1
=-4+1
=-3
