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LenaWriter [7]
4 years ago
12

Which property of equality would be used to solve 3x = 81?

Mathematics
2 answers:
konstantin123 [22]4 years ago
5 0

Answer:

division

Step-by-step explanation:

you'll have to get rid of the 3 so that we can get the value of x. in other words the value of 3 xs is 81, but we need the value of only 1 x, which is why we're gonna divide both sides by 3. to get the value of only 1 x.

hope i helped :))

slega [8]4 years ago
4 0
Division x=81/3 that’s right
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3 years ago
A bag contains 5 yellow marbles and 10 blue marbles. If a representative sample contains 2 yellow ​marbles, then how many blue m
Dmitry [639]

Answer:

There will be 4 blue marbles

Step-by-step explanation:

Yellow to blue marbles is in a ratio of:

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4 0
3 years ago
Read 2 more answers
Answer choices:<br>A (3 , -4)<br>B (4 , -7/2)<br>C (-5 , 8)<br>D (5/2 , -17/4)​
zhuklara [117]

Answer: D (5/2, -17/4)

Step-by-step explanation:  Using elimination your goal is to get rid or 1 variable  so you can solve for the one that's left.  By adding the -2y and 2y you will get 0.  You will also add the 3x+x (4x) and -1+11 (10).  You have now gotten rid of the y and have 4x=10.  By dividing each side by 4 we now know x =2.5.  D is the only possible solution with x=2.5 (5/2) but to solve for y you plug 2.5 in to an equation as x so) x-2y=11

                                                                           2.5-2y=11

                                                                            -2y=8.5                                                                        Answer D (5/2,-17/4)                                      y=-17/4 (4.25)

4 0
3 years ago
If the median were to be calculated at 82.5 degrees, then would the feasible mean be 81.6?
dmitriy555 [2]
I think your right,It would be 81.6.
 Hope this helps.  :D
7 0
4 years ago
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