Why the commutative and associative properties don't hold true for subtraction and division

Answers

Answer 1

Answer: The commutative and associative properties do not apply to both subtraction and division because once you move around your variables, you will produce different results, whereas in addition and multiplication, any change in position of numbers won't affect the result. The identity properties apply to them because once you add, subtract, multiply, or divide a certain number from any other number, you produce the same result, or, in other words, keep the number's "identity".

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What is 0 divided by 0

Answers

The answer you are looking for does not exsist, for there is no equation 0%0, thus your answer is itself,zero,
sincerily,lazylegion! hope this helped.

0÷0 = 0÷0
it cant be solved

a gumball machine contains 23 green gumballs, 52 red gumballs, 34 blue gumballs, 61 yellow gumballs, and 30 pink gumballs. what percentage of the gumballs are red?

Answers

24 percent are red of the gumballs

A section in a stained glass window is shaped like a trapezoid.the top base is 4 centimeters and the bottom base is 2.5 centimeters long.if the area of the section of glass is 3.9 square centimeters,how tall is the section?

Answers

The formula for a trapezoid is a= (l+w)/2 * h (substitute knowns) 3.9= (2.5+4)/2 *h. (solve for h) 3.9= 3.25* h 3.9/3.25= h h= 1.2 The height is 1.2cm in length

If 2x - 1 = 6, what is the value of 4x^2 - 1

Answers

Answer: 48

Step-by-step explanation:

2x - 1 = 6

Add 1 to both sides of the equation , we have:

2x = 7

divide through by 2

x = 7/2

The value of $4x^(2)$ - 1 will be calculated by substituting in the value of x , that is

$4x^(2)$ - 1 = 4( $((7)/(2) )^(2)$ - 1

= 4( $(49)/(4)$ ) - 1

= 49 - 1

= 48

Answer:

Step-by-step explanation:

2x-1=6

2x=6+1

2x=7

x=7/2

------------

4x^2-1

4(7/2)^2-1

4(49/4)-1

49-1

Y/7=4 I need help on this one

Answers

I'm assuming that you are trying to solve the equation for y, which we can do by isolating the variable on one side of the equation.

y/7 = 4

To get rid of the denominator of y, we have to multiply both sides by this amount (7).

(y/7)*(7) = (4)(7)

When we simplify, we get:

y = 28

If we go back to the original equation and plug in our answer, 28/7 = 4, we can see that it results in a true statement.

Therefore, the answer is y=28.

$(y)/(7)$ = 4

To isolate y, we need to multiply either sides by 7 to cancel out the fraction.

$(y)/(7)$ × 7 = 4 × 7
7 and 7 cancels out

y = 28

Combine like terms. 3(p+5)-8+11p and 7x+4(2x-6)

Answers

The first one is 14p+7 and the second one is 15x-24.

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