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3 years ago

14

40x/64ydivided by 5x/8y=

1 answer:

blsea [12.9K]3 years ago

4 0

<span>40x/64ydivided by 5x/8y would be better written as

</span><span>40x/64y
------------ which in turn would be clearer if written as
</span><span>5x/8y

40x
--------
64y
==========
5x
------
8y

Now invert (5x/8y) and multiply (40x/64y) by your result:

</span> 40x 8 y
-------- * ------ Reducing, we get 8/8, or 1. The answer is 1.
64y 5x

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3 years ago

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ollegr [7]

To solve system of equations by substitution, we are going to use the first equation to substitute into the second equation wherever you see y.

$5x - 4y = -3$

$5x - 4(3x-5) = -3$

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$-20$ $-20$

_______________

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___ ____

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2 years ago

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Ronch [10]

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Multiply the bracket by -3

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3 years ago

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Natasha2012 [34]

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago