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2 years ago

Calculate the value of b.(b-15)3b°(2b + 45°Diagram not drawn accurately

Mathematics

1 answer:

e-lub [12.9K]2 years ago

7 0

Answer:

b = 30

Step-by-step explanation:

The sum of the 2 angles above the line will equal the angle below the line

3b + b - 15 = 2b + 45

4b - 15 = 2b + 45 ( subtract 2b from both sides )

2b - 15 = 45 ( add 15 to both sides )

2b = 60 ( divide both sides by 2 )

b = 30

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Answer:

Part a) The constant of proportionality of Kevin's wage is $k=\$8.25\ per\ hour$

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Step-by-step explanation:

See the attached figure to better understand the problem

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

To find out the constant of proportionality k , divide the variable y (total earned) by the variable x (number of hours)

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I take the point (2,16.50)

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I take the point (3,27.00)

$k=\frac{27.00}{3}=\$9.00\ per\ hour$

Savannah's wage

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$k=\frac{19.00}{2}=\$9.50\ per\ hour$

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To solve this problem you must apply the proccedure shown below:

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Therefore, as you can see, the answer is: $f^{-1} (x)= 4x^{2} -24x+36
$

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3 years ago

Calculate the value of b.(b-15)3b°(2b + 45°Diagram not drawn accurately​

Calculate the value of b.(b-15)3b°(2b + 45°Diagram not drawn accurately