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mrs_skeptik [129]

2 years ago

10

How do you graph a ratio

1 answer:

valentina_108 [34]2 years ago

8 0

The graphing of a ratio includes one axis representing part A of the ratio and the other axis representing part B of the ratio. for example, if you have 20 defects per 100 parts of a car, the defects would be represented as part a and the total parts would be represented by part b. These graphs show one part on the left hand and the other on the bottom of the graph, and the graphing of each ratio acts a lot like graphing an equation you would normally see.

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A gold coin appreciated in value from $200.00 to $475.00 in 6 years. Find the yearly rate of appreciation. Show or explain all w

Travka [436]

Answer:

16%

Step-by-step explanation:

To solve this we are using the standard growth equation:

$y=a(1+b)^x$

Were

$y$ is the final value after $x$ years

$a$ is the initial value

$b$ is the growth factor (yearly rate of appreciation in our case) in decimal form

$x$ is the time in years

We know from our problem that gold coin appreciated in value from $200.00 to $475.00 in 6 years, so $y=475$ , $a=200$ , and $x=6$ .

Let's replace the values in our equation and solve for $b$ :

$y=a(1+b)^x$

$475=200(1+b)^6$

$\frac{475}{200} =(1+b)^6$

$2.375=(1+b)^6$

$\sqrt[6]{2.375} =\sqrt[6]{(1+b)^6}$

$1+b=\sqrt[6]{2.375}$

$b=\sqrt[6]{2.375}-1$

$b=0.155$

which rounds to

$b=0.16$

Since our appreciation rate is in decimal form, we need to multiply it by 100% to express it as percentage:

0.16*100% = 16%

We can conclude that the yearly appreciation rate of our gold coin is approximately 16%

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Use the equation y = 7x to complete the table. What are the missing values of

Basile [38]

Answer:

D) When x=2, y=14
When x=4, y=28

Step-by-step explanation:

By using slope= y2-y1/x2-x1

I get (1,7) and (3,21) from the table

slope= 21-7/3-1= 14/2= 7

Then I plug in the values into y=mx+b

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Getting an equation of y=7x

When x= 2

y= 7(2)= 14

When x= 4

y= 7(4)= 28

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You would have to multiply 120 x 20 then divide by 8. I hope that helps you!

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dybincka [34]

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