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2 years ago

Roberto is having his house painted. The job takes three days, and he pays the painter the same hourly rate

Mathematics

1 answer:

Tom [10]2 years ago

3 0

Answer:

$\$60\ per\ hour$

Step-by-step explanation:

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 $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Let

x -----> the number of hours worked

y ----> the amount paid in dollars

In this problem we have a proportional variation, between two variables, x, and y

Find out the constant of proportionality k

For (5,300) -----> $k=y/x$ ----> $k=300/5=60\ \$/h$

For (4,240) -----> $k=y/x$ ----> $k=240/4=60\ \$/h$

For (6,360) -----> $k=y/x$ ----> $k=360/6=60\ \$/h$

The constant k is

$k=60\ \$/h$

The equation is equal to

$y=60x$

The unit rate of change of dollars with respect to time is equal to the constant of proportionality or slope of the linear equation

therefore

$\$60\ per\ hour$

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2 years ago

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sveticcg [70]

<h2>>>> Answer <<<</h2>

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Using factor theorem ;

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This implies ;

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3 years ago

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jenyasd209 [6]

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Step-by-step explanation:

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3 years ago

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just olya [345]

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2 years ago

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