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3 years ago

What property can be used to solve this equation?

Mathematics

2 answers:

omeli [17]3 years ago

8 0

Answer:

B. Multiplication property of equality.

x=12

Step-by-step explanation:

Explanation: Multiplication property of equality is multiplying both sides of an equation by the same number does not change the equation.

Divide by six both sides of an equation.

$\frac{6x}{6}= \frac{72}{6}$

Simplify.

$72/6=12$

$x=12$

Hope this helps!

SIZIF [17.4K]3 years ago

6 0

Hey!!

here is your answer >>>

6X = 72

If we divide 6 on both sides, we get,

6X÷6 = 72÷6

X = 12

This is also the multiplication property of equality

Hope my answer helps!

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Each cabin had exactly 8 occupants. The number of occupants for all of the cabins was 208. How many cabins were there altogether

koban [17]

There was exactly 26 cabins, easy math that was XDDD just take 208/8 and you get your answer

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3 years ago

PLEASEEE HELP MEEEE NO LINKSSS

Artemon [7]

Answer:

$\huge\boxed{(2,\ 3);\ (-1,\ 6)}$

Step-by-step explanation:

$f(x)=x^2-2x+3\to y=x^2-2x+3\\f(x)=-x+5\to y=-x+5\\\\\left\{\begin{array}{ccc}y=x^2-2x+3&(1)\\y=-x+5&(2)\end{array}\right$

substitute (1) to (2):

$x^2-2x+3=-x+5$ add x to both sides

$x^2-2x+x+3=-x+x+5$

$x^2-x+3=5$ subtract 5 from both sides

$x^2-x+3-5=5-5$

$x^2-x-2=0\\\\x^2+x-2x-2=0\\\\x(x+1)-2(x+1)=0\\\\(x+1)(x-2)=0\iff x+1=0\ \vee\ x-2=0\\\\\boxed{x=-1\ \vee\ x=2}$

substitute the values of x to (2):

$x=-1\\\\y=-(-1)+5=1+5=6\\\\\huge\boxed{(-1,\ 6)}\\\\x=2\\\\y=-2+5=3\\\\\huge\boxed{(2,\ 3)}$

3 0

2 years ago

A video sharing website starts with 20,000 members. Each year it loses 25% of the members, but adds 10,000 new members after the

MrMuchimi

20,000 x 25 = 500,000
500,000 divided by 100 = 5,000 members are lost.
Members left = 15,000
Members added = 10,000
Members every year = Members left + Members added
= 15,000 + 10,000
= 25,000

6 0

3 years ago

4x2 + 8x - 7 - (3x2 - X+9)

Andreas93 [3]

Answer:

Step-by-step explanation:

$4 {x}^{2} + 8x - 7 - (3 {x}^{2} - x + 9)$

When there is a (-) in front of an expression in parentheses, change the sign of each term in the expression: