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Kitty [74]
3 years ago
9

Select the number property that will justify the step in the following expression.

Mathematics
2 answers:
Lostsunrise [7]3 years ago
5 0
Associative property of multiplication which states :
(a * b) * c = a * (b * c)
IRISSAK [1]3 years ago
3 0
2(5 • 17) = <span>(2 • 5) 17

It is Associative Multiplication</span>
You might be interested in
Samuel is a teacher and takes home 75 papers to grade over the weekend. He can grade at a rate of 7 papers per hour. How many pa
Alina [70]

Answer: 19

Step-by-step explanation:

75 papers need to be marked

He grades 7 papers per hour

To find out how many paper he graded in 8 hours:

7 x 8

(7 is the number of papers graded in an hour)

(8 is the number of hours)

7 x 8 = 56

(56 is the number of papers he graded in 8 hours)

Now, there was a total of 75.

To find the remaining number of test sheets:

75 - 56

(75 is the total number of papers)

(56 is the number of papers graded)

75 - 56 = 19

Therefore, there are 19 papers remaining to grade.

7 0
3 years ago
To eliminate the y-terms and solve for x in the fewest steps, by which constants should the equations be multiplied by before ad
Kryger [21]

Answer:

The first equation should be multiplied by 9 and the second equation by −4

Step-by-step explanation:

Given the simultaneous equation

First Equation: 5x − 4y = 28

Second equation: 3x - 9y = 30

In order to eliminate y, we must make the coefficient of x in both expression to be equal.

To do that the first equation should be multiplied by 9 (negative value of the coefficient of y in equation 2)and the second equation by -4( (coefficient of y in equation 1)

7 0
3 years ago
Simply 9+1/2(7n-26)-8n
kakasveta [241]
Hi there!

9 + 1/2 (7n - 26) - 8n
= 9 + 7n*1/2 - 26*1/2 - 8n
= 9 + 3.5n - 13 - 8n
= 9 - 13 + 3.5n - 8n
= -4 + 11.5n

Hope this helps!
5 0
4 years ago
Read 2 more answers
Simplify to create an equivalent expression <br> -4(-11 + 4n) -3(-2n + 9)
Marizza181 [45]

Answer:

-71 + 22n is the equivalent expression.

This is the simplified expression.

Step-by-step explanation:

4(-11 + 4n) -3(-2n + 9)

= -44 + 16n + 6n - 27

= -44 + 22n - 27

= -71 + 22n

7 0
3 years ago
Read 2 more answers
Zero is a solution to the following inequality: 1 - 8&gt; -6
Alecsey [184]

Explanation: 1-8>-6

-8+8=0

-6+8=2

1>2

1/1=1

2/1=2

Answer:No

6 0
3 years ago
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