All categories

3 years ago

Which expression is equivalent to 7(xy) 7x+y 7x-y x(7y) xy/7

Mathematics

2 answers:

Nuetrik [128]3 years ago

6 0

Answer: $x(7y)$

Step-by-step explanation:

The given expression: $7(xy)$

i.e. a product of 7 and xy.

The operation used here: Multiplication.

Commutative property of multiplication :-

$a\times b=b\times a$ for any numbers a and b.

Associative property of multiplication :-

$a\times(b\times c)=(a\times b\times c)$ for any numbers a , band c.

Now, $7(xy)=(7x)y$ [Associative property of multiplication]

$=(x7)y$ [Commutative property of multiplication]

$=x(7y)$ [Associative property of multiplication]

OverLord2011 [107]3 years ago

5 0

<span>x(7y) this is what it would be</span>

You might be interested in

Please hurry attachment below will Brainly if answer correctly 30 POINTS

Rzqust [24]

Put everything into a calculator to change to decimal form to make things easier:
27/5=5.4
5.36=5.36
5 3/5=5.6
33/6=5.5
So now in order to least to greatest it would be:
5.36, 27/5, 33/6, 5 3/5

6 0

3 years ago

Diana worked on her science project for 6 1 3 hours. Gabe worked on his science project 1 3 4 times as long as Diana. Paula work

Vaselesa [24]

Are your numbers right? Diana worked on her project for 613 hours, Gabe worked on it for 134 times as long as Diana, and Paula worked on her science project 34 times as long as Diana? Assuming they are, It is false that Diana worked longer on her science project than Gabe worked on his. Tell me if I read the question wrong, I am happy to help.

4 0

3 years ago

Alyssa is paid a 5 percent commission on her total sales each month. Last month, she sold $30,000 worth of items. After a state

grigory [225]

$1,365 is the answer, (the third choice)

3 0

3 years ago

-x+ 2y = 10<br> -3x+By = 11

adoni [48]

Answer:

change the equation into one variable.

2 y equals 10 + x

y equals 5 + x by 2

now put that into the second equation

-3x + b parentheses 5 + x / 2 equals 11

-3x+b(5+ x/2)

-3x + b5 + bx/2 = 11

8 0

2 years ago

Read 2 more answers

How many solutions does the following equation have?

RoseWind [281]

Answer:

There will be No solution for the equation $9x - 4 = - 3x + 5 + 12x$ . Option B is correct.

Step-by-step explanation:

We need to determine how many solutions the equation $9x - 4 = - 3x + 5 + 12x$ have.

Solving the equation and finding the solutions

$9x - 4 = - 3x + 5 + 12x$

Combining like terms, Moving 3x and 12x to left side of equality and changing their signs and moving 4 on right side of equation and changing sign.

$9x +3x-12x = 5 + 4$

Simplifying

$12x-12x = 9\\0=9$

Solving the equation we get 0=9 which is false. So, there will be No solution for the equation $9x - 4 = - 3x + 5 + 12x$ . Option B is correct.

5 0

2 years ago