MATHEMATICS MIDDLE SCHOOL

X(x-3)=x then the possible value of X are...​

Answers

Answer 1
Answer:

\text{Hey there!}

\text{In order for you can do the distributive property then work from there}

\text{x(x - 4) = x}\n\n\text{x(x)=x}^2\n\n\text{x(-3)= -3x}

\text{Subtract by the value of x on your sides!}

\text{Your new equation becomes: x}^2\text{- 3x = x}

\text{Like}\downarrow

\text{x}^2\text{- 3x - x = x - x}

\text{x - x = 0 }

\text{-3x + (-1x) = -4x}

\text{Our equation becomes: x}^2\text{- 4x = 0}

\text{Next, we have to FACTOR on the LEFT side of your equation}

\text{x(x - 4) = 0}

\text{Set the numbers to FACTOR out to 0}

\text{Like: x = 0 or x - 4 = 0}\text{ (solve that and you SHOULD have the x-values)}

\boxed{\boxed{\bf{Answer: x = 0\ or \ x =4}}}\checkmark

\text{Good luck on your assignment and enjoy your day!}

~\frak{LoveYourselfFirt:)}
Answer 2
Answer:

x(x-3)=x\nx^2-3x-x=0\nx^2-4x=0\nx(x-4)=0\nx=0\vee x=4

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Xander purchased 10 equally priced DVDs online. He paid $250, which included shipping. Which statements are true? Mark all that apply.

Answers


Xander paid $25 per CD plus shipping.

Last year, the school library had a total of x books. Over the summer, the library acquired another 42 books and now has a total of 2,402 books. Which equation could be used to find x, the number of books the library had last year?A.2,402 + x = 42
B.x + 42 = 2,402
C.42x = 2,402
D.x - 42 = 2,402

Answers

B.x + 42 = 2,402 letter b

When 24 is subtracted from 7 times a certain number, the result is 109. what is the number?

Answers

109 + 24 = 133133/7 = 19
The number is 19

The book Doug is reading is 280 pages long.He has read 84 pages so far.What percent of his has Doug read

Answers

Hi there, this is simple, all you have to do is 280 divided by 84, and multiply it by 100, 280÷84=3.333, 3.333×100=333.33. Therefore, the percent is 333.33%
84 divided by 280 is 0.3
0.3x100=30
so your answer is 30%

hope this helps :)

To solve the equation for x by completing the square what equation is equivalent to x^2-x-2=0here are options for both blanks (The equivalent equation (x-Blank)^2=Blank

-1/4
1/4
-1/2
1/2
-9/4
9/4
-3/2
3/2

Answers

so to complete the square in
ax^2+bx+c=d form

make sure a=1
subtract c from both sides
take 1/2 of b and square it
add that to both sides
factor perfect square

1x^2-1x-2=0
a=1
move c to other side
add 2 to oth sides
x^2-1x=2
take 1/2 of b and square it
1/2 of -1=-1/2
squaer it
1/4
add that to both sides
x^2-1x+1/4=2+1/4
factor left side
(x-1/2)=2+1/4

first blank is 1/2

2+1/4=8/4+1/4=9/4

blanks are
1/2 and 9/4

2.1 liters of coffee were equally distributed to 30 cups. How many milliliters of coffee were in each cup?

Answers

The amount of coffee in each cup is the average coffee in the cups.

The amount of coffee in each cup is 70mL

The given parameters are:

\mathbf{Size = 2.1L}

\mathbf{Cup = 30}

So, the amount in each cup is:

\mathbf{Amount = (Size)/(Cup)}

Substitute known values

\mathbf{Amount = (2.1L)/(30)}

\mathbf{Amount = 0.07L}

Convert liters to milliliters

\mathbf{Amount = 0.07 * 1000mL}

\mathbf{Amount = 70mL}

Hence, the amount of coffee in each cup is 70mL

Read more about mean and averages at:

brainly.com/question/16217700

70 ml

Further explanation

Given:

2.1 liters of coffee were equally distributed to 30 cups.

Question:

How many milliliters of coffee were in each cup?

The Process:

Step-1: converting liters into milliliters

Recall \boxed{ \ 1 \ liter = 1,000 \ milliliters \ }

Let us change the 2.1 liters unit of coffee into milliliters.

\boxed{ \ 2.1 \ liters * (1,000 \ mL)/(1 \ liter) = \ ? \ }

\boxed{ \ = 2.1 * 1,000 \ mL} \ }

\boxed{ \ = 21 * (1)/(10) * 1,000 \ mL} \ }

\boxed{ \ = 21 * 100 \ mL} \ }

\boxed{\boxed{ \ 2,100 \ mL \ }}

Therefore, 2,100 mL of coffee are available for distribution.

Step-2: calculating how many milliliters of coffee were in each cup

\boxed{ \ 30 \ cups = 2,100 \ mL \ }

\boxed{ \ 1 \ cups = \ ? \ mL \ }

We have to divide the total amount of coffee by the number of cups.

\boxed{ \ 1 \ cup * (2,100 \ mL)/(30 \ cups) * 1,000 \ mL = \ ? \ }}

\boxed{ \ = (2,100)/(30) \ }

The numerator and denominator are equally divided by 10.

\boxed{ \ = (210)/(3) \ }

\boxed{ \ = 210 / 3 \ }

\boxed{\boxed{ \ 70 \ }}

Thus, 70 milliliters of coffee were in each cup.

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Keywords: 2.1 liters of coffee, were equally distributed, to 30 cups, how many, milliliters, in each cup, least common multiple, LCM, numerator, denominator
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