Solve the following system:y = x + 3
2x + y = 9

(2, 5)
(5, 2)
(−2, 5)
(2, −5)

Answers

Answer 1

Answer:

Answer:

−1

Step-by-step explanation:

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Evaluate 2b^2 − 4a + 4a^2 for a = 3 and b = −8.

Answers

(2*(-8)^2)-(4*3)+(4*3^2)

128-12+36

152

Fifteen times a number subtracted from 80 is 25

Answers

The required number would be 11 / 3 which represents " Fifteen times a number subtracted from 80 is 25".

What are Arithmetic operations?

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.

- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.

for example 12 -2 = 10

* Multiplication operation: Multiplies values on either side of the operator

For example 12*2 = 24

To determine the number which is Fifteen times a number subtracted from 80 is 25

Let the number be x.

As per the given condition,

Here the required number would be Fifteen times = 15x and

Then this is subtracted from 80; 80 - 15x

⇒ 80 - 15x = 25

⇒ -15x = 25 - 80

⇒ -15x = -55

⇒ x = -55 / -15

Apply the Division operation, and we get

⇒ x = 11/3

Therefore, the required number would be 11 / 3.

Learn more about Arithmetic operations here:

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Let the number be x.

15 times the number = 15x

This is subtracted from 80, 80 - 15x

80 - 15x = 25

-15x = 25 - 80

-15x = -55

x = -55 / -15

x = 11/3

So the number is 11 / 3.

in 2004, 34.2 million accountants e-filed income tax returns. this was 114% of the number who filed in 2003. Find the number of accountants who e-filed income tax returns in 2003

Answers

Answer:

30 million accountabts

Step-by-step explanation:

To get the number of accountant that refilled in 2003, 100/114 X 34.2 = 30

Find one percent by dividing it by 100, then multiply it by 114 and theres your answer.

Need help ASAP will give brainly if correct

Answers

I’m pretty sure that it’s C

Answer:

C is not a function because the x value 2 corresponds to two numbers

Step-by-step explanation:

Please Brainliest!!!!

At the zoo,there were 3 times as many monkeys than lions.Tom counted a total of 24 monkeys and lions.How many monkeys were there?

Answers

so monkeys/3=lions or monkeys=3(lions)
monkeys+lions=24
subsitute monkeys=3(lions) for monkeys in the second equation
3(lions)+lions=24
add like terms
4lions=24
divide both sides by 4
lions=6
subsitute lions=6 into second equation
monkeys+6=24
subtract 6 from both sides
monkeys=18

$3x-\ monkeys\nx-\ lions\n\n3x+x=24\n4x=24\ \ \ \ divide\ by\ 4\nx=6\n\n3x=18\n\nThere\ are\ 18\ monkeys\ and\ 6\ lions.$