Item originally costs $80, 25% discount

Answers

Answer 1

Answer: $20 would be the answer
The percent is a decimal in disguise.
You turn the percent mark into a decimal so .25
It would be multiplication
80 times .25 would be $20

Answer 2

Answer: On a scientific calculator you can press the symbol with a rectangle over a line with another rectangle underneath then add the number 80 to the top of the fraction and 100 on the bottom. You then x the fraction by 25 which will give you 25 % of 80. Next you can take away the 25% you found from your original price (80) and there is your answer= 80/100 x 25 =20
80 - 20= 60
Therefore the discounted price is $60

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Subtract these polynomials. (3x2 + 3x + 3) - (x2 + 2x + 3) =

A. 2x2 + x
B. 2x2 + 5x
C. 2x2 + 5x + 6
D. 2x2 + x + 6

Answers

Answer:

$2x^2+1x$

Step-by-step explanation:

Subtract these polynomials.

$(3x^2 + 3x + 3) - (x^2 + 2x + 3)$

To subtract, we multiply negative sign inside the second parenthesis

$3x^2 + 3x + 3-x^2 - 2x - 3$

To subtract the polynomials we combine like terms

$3x^2-x^2+ 3x- 2x+3-3$

$2x^2+1x$

3x^2 -x^2= 2x^2
3x-2x=x
3-3=0

The answer is A.

What is the value of x if 3ax - 4x equals 15a -20?

Answers

Step-by-step explanation:

3ax - 4x = 15a - 20

x(3a - 4) = 15a - 20

so,

x × 3a = 15a

x × 3 = 15

x = 15/3 = 5

x × -4 = -20

x = -20/-4 = 5

since both terms have the same solution, it is the solution for the whole equation :

x = 5

How do u solve 4(y-3)+9-3y

Answers

if you need to find the y, and the
4(y-3)+9-3y=0, then
we use PEMDAS, parenthesis first
4y-12+9-3y=0
4y-3y-12+9=0
y-3=0 add 3 on both sides
y=3

$4(y-3)+9-3y=0 \n 4y-12+9-3y=0 \n y-3=0 \n y=3$

Which expression has a simplified expression of 5x - 12?1.) -3(4 x - 4) - 7 x
2.) 3(4 x - 4) - 7 x
3.) 3(-4 x + 4) - 7 x
4.) -3(-4 x - 4) - 7 x
this is multiple choice

Answers

TherightanswerisofoptionB.

please see the attached picture for full solution

Hopeit helps

Goodluck on your assignment

Answer:

2.) 3(4 x - 4) - 7 x

Step-by-step explanation:

3. a. Simplify (2x + y) (x-7)
b. Find the truth set of 2x-3 +3 = -1

Answers

Answer: b. X=-1/2

Step-by-step explanation:

2x-3+3=-1-3 and +3 cancel each other

2x=-1 both sides divided by 2

X=-1/2

Use synthetic division to solve (x^4 – 1) ÷ (x – 1). What is the quotient?

Answers

Answer: $x^3+x^2+x+1$

Step-by-step explanation:

Here, the dividend is $x^4+0x^3+0x^2+0x-1$

While divisor is x - 1

In the synthetic division,

We will follow the following steps,

Step 1) Write the coefficient of the dividend in the decreasing order of degree,

Hence, the element in the first row under the division sign are 1, 0, 0, 0, - 1

Step 2) By putting x - 1= 0, we get x = 1

Hence, write down 1 outside the sign,

Here the problem is set up correctly, So, bring the leading coefficient (first number) straight down.

Step 3) Multiply the number in the division box with the number that we brought down and put the result in the next column. Then, Add the two numbers together and write the result in the bottom of the row.

Step 4) Repeat the third step until you get the last element ( here the last element is 0,

Thus, We get numbers in the third row, 1, 1, 1, 1 ( Except 0 )

⇒ Quotient is $x^3 + x^2 + x + 1$

Answer:

Step-by-step explanation:

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