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3 years ago

What is the value of the expression 4x+y2y−x when x = 2 and y = 4?

Mathematics

2 answers:

My name is Ann [436]3 years ago

6 0

The answer should be the first one, 2. Do you need and explanation?
4x+y/2y-x

Start by replacing all of the variables.
4(2)+4/2(4)-2

Now work multiply.
8+4/8-2

Now add.
12/6

That is your fraction. But you must simplify it.

Its simplifies to 2.

galben [10]3 years ago

4 0

(4(2)+4)/(2(4)-2)
=(8+4)/(8-2)
12/6
=2

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3 years ago

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3 years ago

Gary is 25 years old. That is 7 more than

SpyIntel [72]

Answer:

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Step-by-step explanation:

Gary: 25

Sean: x

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Let's break down the sentence into mathematical terms

Gary is 25 years old. That is 7 more than twice Sean's age.

In math, is means equal to. It is represented with an equal sign (=)

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Twice means double which is 2 ·

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We don't need it to say "Gary = 25" in our equation.

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Let's rewrite it with the associative property.

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