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Black_prince [1.1K]
3 years ago
11

The turtle population on an island is declining at a rate of 1.4% per year. The population was 3800 in the year 2009. Which answ

er is the best prediction of the population in the year 2014?
Mathematics
2 answers:
Galina-37 [17]3 years ago
8 0
Population in 2014 is given by 3800(1 + 1.4%)^-(2014 - 2009) = 3800(1 + 0.014)^-5 = 3800(1.014)^-5 = 3,545
balu736 [363]3 years ago
3 0

3541 peoples!

and just if you need it :

Trucks 1.) 236

Iodine 2.) 15.625 -------Cobalt-60 2.) 18.75 g

Compound interest 3.) 44,440.71

Turtle 4.) 3541

Coyotes 5.) 10166

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Answer:

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Step-by-step explanation:

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This is one term that is expressed as a real number, a variable, a product, or quotient of a variable and real number.
viva [34]
The answer you are looking for is a monomial 
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Y is inversely proportional to the cube of x if y = 7 when x=4 what is y when x is 5
Black_prince [1.1K]

Answer:

y = 3.584

Step-by-step explanation:

Given

Variation = Inverse Proportional

When y = 7, x = 4

Required

Find y when x = 5

First, we need to represent the variation.

y varies inversely proportional to x³

This implies that

y ~ 1/x³

Convert variation to equation

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Make k the subject

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When y = 7, x = 4

This gives:

k = 4³ * 7

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6 0
3 years ago
What is the correct first step to solve this system of equations by elimination?
storchak [24]

\bold{\huge{\pink{\underline{ Solution }}}}

\bold{\underline{ Given }}

  • <u>We </u><u>have </u><u>given </u><u>two </u><u>linear </u><u>equations </u><u>that</u><u> </u><u>is </u><u>2x </u><u>-</u><u> </u><u>3y </u><u>=</u><u> </u><u>-</u><u>6</u><u> </u><u>and </u><u>x</u><u> </u><u>+</u><u> </u><u>3y </u><u>=</u><u> </u><u>1</u><u>2</u><u> </u><u>.</u>

\bold{\underline{ To \: Find }}

  • <u>We </u><u>have </u><u>to </u><u>find </u><u>the </u><u>value </u><u>of </u><u>x </u><u>and </u><u>y </u><u>by </u><u>elimination </u><u>method</u><u>. </u>

\bold{\underline{ Let's \: Begin }}

\sf{ 2x - 3y = -6 ...eq(1)}

\sf{ x +  3y = 12 ...eq(2)}

<u>Multiply </u><u>eq(</u><u> </u><u>2</u><u> </u><u>)</u><u> </u><u>by </u><u>2</u><u> </u><u>:</u><u>-</u>

\sf{ 2( x + 3y = 12 )}

\sf{ 2x + 6y = 24 }

<u>Subtract </u><u>eq(</u><u>1</u><u>)</u><u> </u><u>from </u><u>eq(</u><u>2</u><u>)</u><u> </u><u>:</u><u>-</u>

\sf{ 2x + 6y -( 2x - 3y) = 24 -(-6)}

\sf{ 2x + 6y - 2x + 3y = 24 + 6 }

\sf{   9y = 30 }

\sf{   y = 30/9}

\sf{\red{ y = 10/3}}

<u>Now</u><u>, </u><u> </u><u>Subsitute</u><u> </u><u>the </u><u>value </u><u>of </u><u>y </u><u>in </u><u>eq(</u><u> </u><u>1</u><u> </u><u>)</u><u>:</u><u>-</u>

\sf{ 2x - 3(10/3) = -6 }

\sf{ 2x - 10 = -6 }

\sf{ 2x  = -6 + 10}

\sf{ x  = 4/2}

\sf{\red{ x  = 2}}

Hence, The value of x and y is 2 and 10/3

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3 years ago
Solve the following system by graphing. 
Vitek1552 [10]
Answer is 3,3
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