All categories

3 years ago

The population of the town is 2500 and is decreasing at a rate of 3% per year. determine the population after 11 years

Mathematics

1 answer:

Debora [2.8K]3 years ago

4 0

Answer:

$\huge \boxed{ \boxed{1675}}$

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

percent
percentage words problem
PEMDAS

<h3>given:</h3>

population:2500
decreasing rate:3%

the population after 11 years

<h3>let's solve:</h3>

according to the question

population decreases in 1 year

$2500 \times 3\% \\ 2500 \times \frac{3}{100} \\ 25 \times 3 \\ 75$

population will decrease in 11 years

75×11
825

so the population of the town after 11 years will be

2500-825

You might be interested in

What is the difference in area covered by a single 3 inch windshield wiper operating with a central angle of 138 degrees compare

Elena-2011 [213]

Answer:

38.9 square inches.

Step-by-step explanation:

We are asked to find the difference in area covered by a single 3 inch windshield wiper operating with a central angle of 138 degrees compared to a pair of 5 inch wipers operating together each having a central angle of 114 degrees.

We will use area of sector formula to solve our given problem as:

$\text{Area of sector}=\frac{\theta}{360}\times \pi r^2$ , where, r represents radius and theta represents central angle.

Let us find area of sector with central angle 140 degree and radius 3 inch.

$\text{Area of sector}=\frac{138}{360}\times \pi (3)^2$

$\text{Area of sector}=\frac{138}{360}\times 9\pi$

$\text{Area of sector}=10.83849$

Now, we will find area of sector with central angle 114 degree and radius 5 inch and multiply by 2 as:

$\text{Area of sector}=2(\frac{114}{360}\times \pi (5)^2)$

$\text{Area of sector}=2(\frac{114}{360}\times 25\pi)$

$\text{Area of sector}=\frac{114}{360}\times 50\pi$

$\text{Area of sector}=49.74188$

Let us find difference of area as shown below:

$\text{Difference of areas}=49.74188-10.83849$

$\text{Difference of areas}=38.90339$

$\text{Difference of areas}\approx 38.9$

Therefore, the difference in area covered is approximately 38.9 square inches.

8 0

3 years ago

What type of math is adding subtracting of positive and negative numbers

allochka39001 [22]

Hello There!

It is Arithmetic.

Hope This Helps You!
Good Luck :)

6 0

4 years ago

Solve using common logs or natural logs

luda_lava [24]

Hope this helps! sorry if it is kind of dark

8 0

3 years ago

How to the medium in the dot line????!! I don't want my mom to be mad at my grade please!!!!!!

SVETLANKA909090 [29]

Answer: To find the median, count the dots from left to right until you find the middle value.

Step-by-step explanation:

Ok so first it's not a dot line it's a dot plot. Second, let's define what a medium is. The medium is the "middle" of a sorted list of numbers. To find the Median, place the numbers in value order and find the middle number. Example: find the Median of {13, 23, 11, 16, 15, 10, 26}. The middle number is 15, so the median is 15. Tip to find the median from a list of value ordered numbers every time cross a number from each side. For example, if you cross 13 from above also cross 26 and if you cross 23 then also cross 10.

Back to your original question of how to find the medium on a dot plot you need to take all the numbers from your dotted line put them in order even if they are repeated and then cross each one on each side from right to left. Also remember if you cross out all the numbers right and left and end up with two numbers left then take them and add them and then divide by 2 and that will be the median.

An example is attached on here in order to help you understand what I am saying. Hope this helps. Your welcome and I hope you make your mama proud.

7 0

3 years ago

Carly tried to solve a equation step by step.<br> -4(7j+2)=10

alexira [117]

Answer:

j = -9/14

Step-by-step explanation:

-4(7j + 2) = 10

-28j - 8 = 10

-28j = 18

j = -18/28

j = -9/14

8 0

3 years ago