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Annette [7]
3 years ago
10

The population of a town in 2000 was 430. The population is increasing at a rate of 0.9% every year. What will be the projected

population of the town in 2010?
Mathematics
1 answer:
mel-nik [20]3 years ago
8 0

Answer:

1018.

Step-by-step explanation:

The multiplying factor here is 1 +0.09 = 1.09. Every year the current population figure is multiplied by 1.09. We have 10 years of growth so:

  P(2010) =  430(1.09)^10

= 1018.

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The sum of the areas of two circles is 80 pie square meters. Find the length of a radius of each circle if one of them is twice
Svetach [21]

Answer:

The radius of the circles are 4\ m  and   8\ m

Step-by-step explanation:

Let

x-----> the radius of larger circle

y----> the radius of smaller circle

we know that

\pi x^{2} +\pi y^{2}=80\pi

x^{2} +y^{2}=80 -----> equation A

Remember that

x=2y -----> equation B

substitute equation B in equation A and solve for y

(2y)^{2} +y^{2}=80

4y^{2} +y^{2}=80

5y^{2}=80

y^{2}=16

y=4\ m

Find the value of x

x=2y

x=2(4)=8\ m

therefore

The radius of the circles are 4\ m  and   8\ m

4 0
3 years ago
Luke is a messenger for a package-delivery company. He starts at the company’s office and walk 4 blocks due west to deliver the
Degger [83]

4 Blocks West, 5 Blocks East, 1 Block East, 2 Blocks West

W = West

E = East

<h2>4W + 5E + 1E + 2W</h2>

Simplify, by collecting like terms.

<h2>6W + 6E</h2>
7 0
3 years ago
What is the length of the missing leg? If necessary, round to the nearest tenth.
Marrrta [24]

<u>Answer:</u>

  • The length of the hypotenuse is 33 yards.

<u>Step-by-step explanation:</u>

<em>We can solve for 'a' using Pythagoras theorem. Let's solve it.</em>

  • 65² = b² + 56²
  • => 4225 = b² + 3136
  • => b² = 1089
  • => b = 33

Hence, the length of the hypotenuse is 33 yards.

Hoped this helped.

BrainiacUser1357

7 0
2 years ago
Complete the equivalent equation for –7x – 60 = x2 + 10x.
rewona [7]

Complete the equivalent equation for –7x<span> – 60 = </span>x2<span> + 10</span>x.

(x<span> + 5</span>)(x<span> + 12) = 0</span>

What are the solutions of –7x<span> – 60 = </span>x2<span> + 10</span>x?

x<span> = -12 or -5</span>

Please mark as Brainliest. 

5 0
3 years ago
Read 2 more answers
I need help solving this step by step. Work would be nice so I can look and understand it so I can try a different problem. ​
zimovet [89]

Answer:

I need points, sorry, i cant help

Step-by-step explanation:

3 0
3 years ago
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