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shtirl [24]
2 years ago
7

From this given statement, select the definition , property, postulate, or theorem that justifies the prove statement.

Mathematics
1 answer:
USPshnik [31]2 years ago
5 0
Additive property of equality states that:

if a=b, then a+c = b+c, 

that is, if 2 quantities of the same value are added the same quantity, they are again equal.


In our problem a=AD, b=DB,    and c= CD=DE

thus a+c=b+c means <span>AD + CD = DE + DE, 

by the </span><span>Addition Property


Answer: </span><span>Addition Property

</span>
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Use mental math to find which has a greater product 5×50or 5×500
Dennis_Churaev [7]
I think the answer is 5×500
7 0
3 years ago
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Helen rolls a dice and flips a coin. <br> calculate the probability
butalik [34]

Answer:

1/12

Step-by-step explanation:

dice rolling=1/6

coin flipping=1/2

Hence probability=1/6×1/2

4 0
2 years ago
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5n + 10 = 10n - 65<br><br>Show steps I will ly​
natita [175]

Answer: 15

Step-by-step explanation: 5n + 10=10n - 65

                                           -10n        -10n

                                       ------------------------------

                                            -5n +10 = -65

                                                   -10    -10

                                        ----------------------------

                                              -5n = -75

                    divide -5 on both sides and you should get positive 15

5 0
3 years ago
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Using cubes and flats with the number 1,200
vfiekz [6]

A cube represents 1,000 and a flat 100. You can solve this problem by saying the number out loud. "One thousand, two hundred." That means that you need one thousand (cube) and two hundreds (flat). So one cube and two flats will be 1,000+100+100, which equals 1,200.

6 0
2 years ago
Which expression is equivalent to the expression below? Select all that apply.
katen-ka-za [31]

Answer:

2 and 3

Step-by-step explanation:

To simplify this expression, you will need to use the distributive property.

Multiply -2/5 by 15 = <u>- 6</u>, -2/5 by -20d = <u>8d</u>, and -2/5 by 5c = <u>-2c</u>.

you can switch these around to get -6 + 8d - 2c and -2c + 8d - 6.

Hope this helps :)

3 0
2 years ago
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