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insens350 [35]
2 years ago
5

Rockport had 5,620 residents at the time of its founding. Currently there are 3,934 residents. What is the percent of decrease i

n Rockport's population?
Mathematics
1 answer:
adell [148]2 years ago
3 0

Answer:

30%

Step-by-step explanation:

percent decrease = (new - old) / old * 100 = (3934-5620)/5620 * 100 = 30%

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The diameter of a circle is 18 centimeters. what is the radius? d=18 cm give the exact answer in simplest form.
goldenfox [79]
The diameter of the circle is 18 cm.

The radius is one half the diameter.
Therefore the radius is  18/2 = 9 cm

Answer: 9 cm
4 0
3 years ago
Tegan needs to make 68 more snow blocks to finish building an igloo. Write an equation for the number of blocks Tegan still need
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a rectangular park has an area of 2/3 square miles the length of the park is 2 and 2/3 the width of the park what is the Widht o
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5 0
3 years ago
Solve: -7(3+6x)=9(-5x+7)
Ivan

Answer:

x=28

Step-by-step explanation:

-7(3+6x)=9(-5x+7)

-21-42x=-45x+63

-21-42x-(-45x)=63

-21-42x+45x=63

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3x=63-(-21)

3x=63+21

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7 0
3 years ago
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If x+y=5,x-y=4,find the value of x²-y²​
inysia [295]

Answer:

20

Step-by-step explanation:

→ First find the value of x and y

x + y = 5

x - y = 4

→ Add the equations to cancel out the y's

2x = 9

→ Divide both sides by 2 to find the value of x

x = 4.5

→ Substitute x = 4.5 back into x - y = 4 to find the value of y

4.5 - y = 4

→ Minus 4.5 from both sides to isolate -y

-y = -0.5

→ Multiply everything by -1

y = 0.5

→ Substitute x = 4.5 and y = 0.5 into x² - y²

4.5² - 0.5² = 20.25 - 0.25 = 20

4 0
3 years ago
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