The equation that describes the number of bacteria in both the foods when they are mixed is; Option C: 35T₂ + 55T + 450
<h3>How to simply quadratic Equations?</h3>
We are given the equations that describes the number of bacteria in both the foods when they are mixed.
Equation for first bacteria is;
N₁(T) = 15T₂ + 60T + 300
Equation for second Bacteria is;
N₂(T) = 20T² - 5T + 150
The equation that describes the number of bacteria in both the foods when they are mixed is;
N₁(T) + N₂(T) = 15T₂ + 60T + 300 + 20T² - 5T + 150
⇒ 35T₂ + 55T + 450
Read more about Simplifying Quadratic Equations at; brainly.com/question/1214333
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Answer:
2/5
Step-by-step explanation:
4/5*1/2=4/10=2/5
Answer: 4. 9 + 7n - 3
3. 62
Step-by-step explanation:
Given statement: nine more than the product of seven and a number decreased by three
Let n be the number.
Then, required expression:
Correct option is 4.
When n= 8 ,
The value of expression =
Hence, value of the expression when n = 8 is 62.
Correct option is 3.