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Ad libitum [116K]
3 years ago
13

Here is an addition sentence. (13 + 5) + 5 = 23 Choose an equivalent addition sentence that shows the associative property of ad

dition.
Mathematics
2 answers:
ANTONII [103]3 years ago
6 0

<span>(13 + 5) + 5 = 23
</span>
associative property of addition
<span>13 + (5 + 5) = 23</span>
Harlamova29_29 [7]3 years ago
4 0
(13 + 5) + 5 = 23.......same as : 13 + (5 + 5) = 23...associative property
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4 - (-8) =<br> What is the answer
lianna [129]

Answer:

12

Step-by-step explanation:

When you subtract a negative number, the two negatives make a plus sign.

4 - (-8)

= 4 + 8

= 12

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3 years ago
Alexis and Mariana are hiking. Alexis climbs to the
RSB [31]

Answer:

447 ft

Step-by-step explanation:

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2 years ago
. Five plus a number divided by 2 is 9.
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Answer:

Using a calculator, if you typed in 9 divided by 2, you'd get 4.5. You could also express 9/2 as a mixed fraction: 4 1/2.

4 0
2 years ago
Read 2 more answers
Which is an ordered pair on the line 2.5,14 2.25,12 1.25,5 1.5,9
Savatey [412]
I would think that all but one point would be on the line.  One way to approach this problem is to find the equation of the line based upon any two points chosen at random, and then determine whether or not the other points satisfy this equation.  Next time, would you please enclose the coordinates of each point inside parentheses:  (2.5,14), (2.25,12), and so on, to avoid confusion.
                                                               14-12
slope of line thru 1st 2 points is   m = ----------------  =  2/0.25 = 8
                                                              2.50-2.25

What is the eqn of the line:     y = mx + b becomes

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14-20 = b = -6.  Then,   y = 8x - 6.

Now determine whether (12,1.25) lies on this line.  

Is 1.25 = 8(12) - 6?  Is 1.25 = 90?  No.  So, unless I've made arithmetic mistakes, (1.25, 5) does not lie on the line thru (2.5,14) and (2.25,12).

Why not work this problem out yourself using my approach as a guide? 



5 0
3 years ago
How do I find the mass of 250.0mL
kupik [55]

Answer:

  mass = density · volume

Step-by-step explanation:

To find the mass of a given volume, multiply your given volume by the <em>density</em>. Often, density is given in grams per cubic centimeter. 1 cubic centimeter is the same as 1 milliliter.

4 0
3 years ago
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