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Nadya [2.5K]
3 years ago
15

The student population at a middle school in June, 2020 was 1678. In September, 2021, the student population was 1463. What is t

he percent of change
Mathematics
1 answer:
HACTEHA [7]3 years ago
6 0

Answer: -12.81% decrease

Step-by-step explanation:

1678-1463/1463 * 100 = -12.8128

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A growth medium is inoculated with 1,000 bacteria, which grow at a rate of 15% each day. What is the population of the culture 6
Leto [7]
<h2>Number of bacteria after 6 days is 2313</h2>

Step-by-step explanation:

Population after n days is given by

              P_n=P_0(1+r)^n

Initial population, P₀ = 1000

Increase rate, r = 15 % = 0.15

Number of days, n = 6

Substituting

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3 years ago
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To find this we first need to get rid of the 5 in the denominator. 

100 = \frac{15 - x}{5}

So we multiply each side by 5. 

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3 years ago
The shaded area and the diameter
masha68 [24]

Answer:

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Step-by-step explanation:

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<u>Area of the triangle:</u>

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<u>Shaded area:</u>

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Answer:

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Step-by-step explanation:

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A = b×h/2

= 5.2m×4.5m/2

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