3 years ago

How to solve a system of three equations with substitution

Mathematics

1 answer:

zloy xaker [14]3 years ago

4 0

Answer:

Usually there are the variables x y z but it doesn't matter what they are.

Step-by-step explanation:

First choose your first variable to solve. Find x by putting all the numbers and variables to one side.

once you found x substitute the answer for x in all the equations. Next find y and substitute your answer in all the equations again.

Once you have solved 2 variables then you are able to solve z.

If you have questions please feel free to ask in the comments below.

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Step-by-step explanation:

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4 years ago

When Javier and his father went to dinner, the bill was $34. If they tipped the waiter 20%, how much did they spend in total?

Kamila [148]

Answer:

Not sure if this is right, but I got $40.8.

Step-by-step explanation:

I first turned 20% into a decimal. (0.20).

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3 years ago

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Not sure how to solve this one

Alex73 [517]

Answer:

$x\approx 63.4^0$

Step-by-step explanation:

In the given right triangle,

Measure of angle = x°

Opposite side of the angle = 12 units

Adjacent side of the angle = 6 units

By taking tangent ratio of the given angle,

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= $\frac{12}{6}$

= 2

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$x\approx 63.4^0$

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3 years ago

If a = b and b = c, which statement must be true?

shepuryov [24]

a=c because the transitive property states so.

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3 years ago

50 points please help!!

igomit [66]

I’m really not to sure sorry about that

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3 years ago

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