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babymother [125]
3 years ago
15

Which equation illustrates the commutative property of addition?

Mathematics
2 answers:
lbvjy [14]3 years ago
3 0
<span>commutative property of addition
answer is

</span><span>A. 12 + 6 + 15 = 12 + 15 + 6</span>
Arisa [49]3 years ago
3 0
Commutative property means that you can rewrite the equation in a different order. So for example, if I have 3 + 8 + 5 I can rewrite it as 5 + 3 + 8 or 8 + 5 + 3 and so on and so forth. So, we must go over all the options to narrow it down. It isn't B or C, So lets look at D. D shows you 12 + 6 + 15 = 12 + 6 + 15 this is the wrong answer because it does not rewrite the equation. It just repeats itself so lets take a look at option A. A says 12 + 6 + 15 = 12 + 15 + 6 this is the correct answer because it rewrote the equation in a different order but they are still the same numbers.
So the correct answer is
A) 12 + 6 + 15 = 12 + 15 + 6
You might be interested in
By how many degrees did the direction of the boat change
gulaghasi [49]

Answer:

The boat turned <u>39°</u> degrees when it made its first turn.

Step-by-step explanation:

The question is as following:

A boat traveled north for 28 miles, then tuned x° south west and traveled for 25 miles before stopping. When it stopped, the boat was 18 miles from its starting point.

By how many degrees did the direction of the boat change when it made its first turn? Round to the nearest degree.

===================================================

See the attached figure which represent explanation of the problem.

The boat start from point A to point B then stopped at point C

AB = 28 miles, BC = 25 miles and AC = 18 miles.

It is required to find the angle x

By applying the cosine Rule:

AC² = AB² + BC² - 2 * AB * BC * cos x

18² = 28² + 25² - 2 * 28 * 25 * cos x

2 * 28 * 25 * cos x = 28² + 25² - 18²

1400 cos x = 1085

Cos x = 1085/1400 = 0.775

x = Cos⁻¹ 0.775 = 39.2° = 39° to the nearest degree.

So, the boat turned <u>39°</u> degrees when it made its first turn.

8 0
3 years ago
Y= -3x+5 please solve
pychu [463]
X can be from -1.6 to -1.7 or x can be from -3.3 to 3.3
6 0
3 years ago
Read 2 more answers
what impact did Ida b. wells have on the civil rights movement in the late 1800's?
const2013 [10]
<span>D. She wrote articles and gave speeches about hate crimes against blacks in the south.</span>
4 0
3 years ago
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How do u draw a double number line for 2/3 divided by 4?
Mademuasel [1]
2/3 divided by 4= 2/3x1/4 (flip 4 around). 2x1=2 & 3x4=12. 2/12 or 1/6
3 0
3 years ago
You are building a frame for a window. The window will be installed in the opening shown in the diagram. Determine whether the o
creativ13 [48]

This looks like an incomplete answer to me...

I cannot see any diagram or window or opening, or any lines that indicate they are line AC or BD.

4 0
3 years ago
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