2 years ago

Please help!!!! i will give brainliest

Mathematics

1 answer:

ehidna [41]2 years ago

5 0

......The last one

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Use the box method.

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3 years ago

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Alexxandr [17]

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Step-by-step explanation:

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2 years ago

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nignag [31]

Answer:

Therefore the solution set is (x , y) = ( 2 , 1 )

Step-by-step explanation:

Given:

$-2x+y=-3$ ...............Equation ( 1 )

$x+y=3\\$ ...............Equation ( 2 )

$\therefore y=3-x$ ...............Equation ( 3 )

To Find:

x = ?

y = ?

Solution:

Using Substitution Method we will have

Substitute above ' y ' Equation 3 in Equation 1 we get

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Now Substitute ' x ' in Equation 3 we get

$y=3-2=1\\y=1$

Therefore the solution set is (x , y) = ( 2 , 1 )

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2 years ago

An aquarium tank holds 190 liters of water. How much is this in gallons? Use the following conversion: 1 gallon is 3.8 liters.

Bogdan [553]

All you have to do is divide 190 liters by 3.8 liters. To get the calculated amount of gallons.

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3 years ago

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