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ivann1987 [24]
2 years ago
11

A microbiologist during a study on a culture of 250 bacteria noticed that he can model the number of bacteria after t number of

days by
the equation b = 250 x 4t. in this equation what does 4t represent?
Mathematics
1 answer:
Alona [7]2 years ago
3 0

4t represents the rate of growth of the population of bacteria given the number of days.

<h3>What does the equation mean?</h3>

Given this equation, b = 250 x 4t, 250 is the initial population of the bacteria. 4t indicates that the bacteria increases by 4 with the passage of a day.

For example, after 1 day, the population becomes : 250 x (4 x 1) = 254

To learn more about mathematical equations, please check: brainly.com/question/26427570

#SPJ1

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4 0
3 years ago
Solve the system by using the technique of ‘elimination’: -2x+5y=-42,7x+2y=30
Gekata [30.6K]

Solve the following system using elimination:

{5 y - 2 x = -42 | (equation 1)

7 x + 2 y = 30 | (equation 2)

Swap equation 1 with equation 2:

{7 x + 2 y = 30 | (equation 1)

-(2 x) + 5 y = -42 | (equation 2)

Add 2/7 × (equation 1) to equation 2:

{7 x + 2 y = 30 | (equation 1)

0 x+(39 y)/7 = (-234)/7 | (equation 2)

Multiply equation 2 by 7/39:

{7 x + 2 y = 30 | (equation 1)

0 x+y = -6 | (equation 2)

Subtract 2 × (equation 2) from equation 1:

{7 x+0 y = 42 | (equation 1)

0 x+y = -6 | (equation 2)

Divide equation 1 by 7:

{x+0 y = 6 | (equation 1)

0 x+y = -6 | (equation 2)

Collect results:

Answer: {x = 6, y = -6

3 0
3 years ago
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Answer:

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3 0
3 years ago
For the values a = 3.4 and b = 2.6, which are legs of a right triangle, find c, the hypotenuse, to the nearest tenth.
sammy [17]
C^2 = a^2 + b^2
c^2 = 3.4^2 + 2.6^2
c^2 = 11.56 + 6.76
c^2 = 18.32
c = 4.3

answer
c = 4.3
4 0
3 years ago
Read 2 more answers
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