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mrs_skeptik [129]
3 years ago
12

Which property of addition is shown? (3 + 9) + 8 = 3 + (9 + 8)

Mathematics
1 answer:
Illusion [34]3 years ago
6 0

Answer:

Associative Property of Addition

Step-by-step explanation:

Looking at the expression, you can see that the numbers have been grouped differently. Based on the Associative Property of Addition, the sum of the numbers is the same despite the different pairing.

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Write an equivalent expression<br>8x - 6x + 10y + 6 + 4y + 9 = ?x + ?y + ?​
k0ka [10]

Answer: 2x + 14y + 15

Step-by-step explanation:

8x - 6x + 10y + 6 + 4y + 9

Bring like terms together

8x - 6x  + 10y + 4y + 6 + 9

Combine like terms

2x + 14y + 15

Hope this helped!

7 0
2 years ago
What is -3 2/3 x (-2 1/4)? A. -8 1/4. B. -6 1/6 C. 6 1/6. D. 8 1/4
juin [17]

Answer:

8 1/4

Step-by-step explanation:

Solution by Formulas

converting mixed numbers to fractions, our initial equation becomes,

−11 -9

3×4

Applying the fractions formula for multiplication,

−11×−9

3×4

=99

12

Simplifying 99/12, the answer is

=814

7 0
3 years ago
Read 2 more answers
Donna and Emily are sisters. Donna’s age and Emily’s age add up to 31. Donna is 3 years younger than Emily.How old are the two s
pishuonlain [190]

Answer:

donna is 14.5 and emily is 17.5

Step-by-step explanation:


3 0
3 years ago
Mandy's science class counted the bones in an owl pellet.
Kamila [148]
Each of those bones pictures are equal to 2 bones. The question is asking, how many more rib bones than skull and jaw bones combined, so you’re gonna have to do some addition and subtraction.

You take the number of skull bones, which is 1(2), and add that to the number of jaw bones, which is 0. Giving you a total of 2 bones.

Then you are taking the rib bones 3(2) and finding out that you have 6.

So with that information, you can find out that there are 4 more rib more than skull and jaw bones combines (6-2=4)
8 0
3 years ago
When the coordinates 1 1 7 3 8 0 and 2 − 2 are joined which shape is formed 5 points group of answer choices trapezoid rectang
Hatshy [7]

the coordinates (1,1), (7,3), (8,0) and (2,-2) are joined which shape is formed as Square

When the coordinates (1,1), (7,3), (8,0) and (2,-2) are joined, a square is formed. The sides are equal length and the angles are all 90 degrees.The coordinates (1,1), (7,3), (8,0) and (2,-2) are points on a two-dimensional plane. When the points are connected, a square is formed. A square is a four sided shape with four 90 degree angles and four equal length sides. The length of each side can be calculated by finding the distance between the two points. For example, the distance between (1,1) and (7,3) is 6 units. Therefore, the length of each side of the square is 6 units.

Learn more about square here

brainly.com/question/22970240

#SPJ4

5 0
1 year ago
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