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2 years ago

Evaluate 10.2x + 9.4y when x=2 and y=3

Mathematics

1 answer:

vekshin12 years ago

5 0

10.2 x 2 = 20.40
9.4 x 3 = 28.20
Total= 48.60

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20POINTS<br> x-4y=1 and 2 x-8y=2

Rom4ik [11]

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3 years ago

Does the chart below represent a proportional relationship? What is the rate of change?

Lilit [14]

This chart represents a proportional relationship. The rate of change will be 4.

<h3>What is the constant of proportionality?</h3>

Firstly, there is a proportional relationship.

Two values x and y are said to be in a proportional relationship if x=ky, where x and y are variables and k is a constant.

The constant k is called the constant of proportionality.

Given;

x y

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Here, x = ky

put the first value

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This chart represents a proportional relationship.

So the rate of change will be

$Rate = \dfrac{y_2 - y_1}{x_2 - x_1}\\\\Rate = \dfrac{8 - 4}{2 - 1}\\\\Rate = 4$

Learn more about proportional ;

brainly.com/question/20048815

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1 year ago

Another question what's the formula for an open end of a cylinder??

Kay [80]

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Step-by-step explanation:

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