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Len [333]
3 years ago
14

How long will it take for a certain population of fish to triple if the relative growth rate is 45% per year?

Mathematics
1 answer:
Arisa [49]3 years ago
5 0

Answer:

n = 3 Year (Approx)

Step-by-step explanation:

Given:

Growth rate (r) = 45% = 0.45

Find:

Number of year for 3 times of population (n)

Computation:

Assume;

Current population = P

So,

New population = 3P

A = p(1+r)ⁿ

3P = P(1+0.45)ⁿ

3 = (1.45)ⁿ

n = 2.96 year

n = 3 Year (Approx)

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A cereal box manufacturer changes the size of the box to increase the amount of cereal it contains. The expressions n and ​n, wh
Alisiya [41]

10.5 small boxes equals the same amount of cereal in a large box

<h3>How to determine the value</h3>

From the information given, let:

n is the number of smaller boxes

We know that:

  • 12 + 7.6n
  • 6 + 8n

Then,

12 + 7.6n = 6 + 8n

collect like terms

8n - 7. 6n = 12 - 6

0. 4n = 6

n = 6/ 0. 4

n = 15

The amount of cereal in a large box is;

6 + 8n = 6 + 8 (15) = 126 ounces

The amount of cereal in the smaller box is 12 ounces

Divide the volume of the larger box by the volume of the smaller box;

= 126/ 12

= 10. 5 smaller boxes

Hence, 10.5 small boxes equals the same amount of cereal in a large box

The complete question:

A cereal box manufacturer changes the sizeof the box to increase the amount of cereal it contains. The equations 12 + 7.6n and 6 + 8n, where n is the number of smaller boxes, are both representative of the amount of cereal that the new larger box contains. How many smaller boxes equal the same amount of cereal in the larger box?

Learn more about word problem here:

brainly.com/question/13818690

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5 0
2 years ago
What is the solution of the inequality?<br> 2(m + 3) &lt; -5 +3m
natima [27]

Answer:

m>11

Step-by-step explanation:

2(m+3)<-5+3m

2(m+3)>3m-5

2m+6>3m-5

6<3m-5-2m

6<m-5

6+5<m

11<m

m>11

5 0
3 years ago
Given y = 2x2 - 10x. Find all real values of x for which y = -3.
Stella [2.4K]
First, plug in -3 for the y value.
-3=2x²-10x
Then, add 3 to both sides.
0=2x²-10x+3
Use the quadratic equation to solve
(-b+-√b²-4ac)/2a
You get 4.68 or 0.32
You still have to check your answer to see if there is an excluded value.
Both values check.

6 0
4 years ago
Read 2 more answers
F(x)=6(1-x) what is the value of f(-8)
Mariulka [41]

Answer:

54

Step-by-step explanation:

What the shorthand is telling you is wherever you see an x on the right, you put in -8

f(x) = 6(1- x)

f(-8) = 6(1 - - 8)

f(-8) = 6(1+8)

f(-8) = 6*9

f(-8) = 54

8 0
3 years ago
How many hours are high school students supposed to sleep?
Nikitich [7]
Eight hours a day is a healthy average
4 0
3 years ago
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