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Natali [406]
3 years ago
15

What is the value of 9x - 4y if x = 3 and y = 2​

Mathematics
2 answers:
Flura [38]3 years ago
5 0

Answer:

19

Step-by-step explanation:

plug both values in

azamat3 years ago
5 0

Answer:

19

Step-by-step explanation:

<em><u>Since it gives you the values of x and y, all you need to do is plug in the numbers, like so:</u></em>

9x - 4y

9(3) - 4(2)

27 - 8

19

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This subject is on integers
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Answer:

|-8| = 8

Step-by-step explanation:

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8 0
3 years ago
Roy and Sam start solving the equation as follows.
denpristay [2]

Answer:

The correct option is D.

Step-by-step explanation:

The given equation is

-3x+4=5x-6

According to the addition property of equality a=b and a+c=b+c are equivalent equations.

Use addition property of equality, add 3x on both the sides.

-3x+4+3x=5x-6+3x

4=8x-6

Therefore Sam's work is incorrect because he make calculation mistake.

According to the subtraction property of equality a=b and a-c=b-c are equivalent equations.

Use subtraction property of equality, subtract 5x from both the sides.

-3x+4-5x=5x-6-5x

-8x+4=-6

Therefore Roy's work is correct because he used subtraction property.

Option D is correct.

7 0
3 years ago
In the game of​ roulette, a player can place a ​$8 bet on the number 17 and have a StartFraction 1 Over 38 EndFraction probabili
svp [43]

Answer:

Expected value of the game: -$0.421

Expected loss in 1000 games: $421

Step-by-step explanation:

There are two possible outcomes for the event:

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The expected value for a single game is:

E(X) = \frac{1}{38}*\$280-\frac{37}{38}*\$8\\E(X)=-\$0.421

The expected value of the game is -$0.421

In 1,000 plays, the expected loss is:

L = 1,000*-\$0.421\\L=-\$421

You would expect to lose $421.

3 0
3 years ago
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larisa86 [58]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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A ladder that is 21 feet long is propped against a building. The bottom of the ladder was placed 4 feet from the base of the bui
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Answer:

sorry im late but the answer is C. 20.6

Step-by-step explanation:

4 0
3 years ago
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