2 years ago

Someone tell me the definition of a Coefficient?

Mathematics

1 answer:

Elza [17]2 years ago

3 0

A numerical or constant quantity placed before and multiplying the variable in an algebraic expression.

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An airplane flies with a constant speed<br> of 840 km/h. How far can it travel in<br> 1 hour?

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Answer:

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Step-by-step explanation:

The speed expression ...

840 kilometers per hour

means the plane files 840 kilometers in each hour.

In 1 hour, it will travel 840 km.

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Another stack of books is 43 inches tall. Each book is 1/2 inch thick. Write an expression that represents the number of books i

enyata [817]

Answer:

86 books

Step-by-step explanation:

A stack of books is 43 inches tall.

Each book is $\frac{1}{2}$ inch thick.

To find the number of books in tha stack, divide the height of the stack by the height of the book:

$43:\dfrac{1}{2}$

The division by the fraction $\frac{1}{2}$ is equivalent to the multiplication by the fraction $\frac{2}{1},$ so

$43:\dfrac{1}{2}=43\cdot \dfrac{2}{1}=43\cdot 2=86$

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3 years ago