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Zina [86]
2 years ago
7

PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP​

Mathematics
2 answers:
Troyanec [42]2 years ago
6 0

Answer:

  • 81/x - 3 = 6
  • 2x - 3 = 15
Tasya [4]2 years ago
3 0

Answer:

it's only the last two

Step-by-step explanation:

3x + 2 = 25

3x + 2 - 2 = 3x

25 - 2 = 23

3x = 23

3x / 3 = x

23 / 3 = 7 2/3

x = 7 2/3 not this one

x/3 + 7 = 8

x/3 + 7 - 7 = x/3

8 - 7 = 1

x/3 = 1

x/3 * 3 = x

1 * 3 = 3

x = 3 not this one

4 + 5x = 18

4 + 5x - 4 = 5x

18 - 4 = 14

5x = 14

5x / 5 = x

14 / 5 = 2 4/5 not this one

24 - 2x = 13

24 - 2x - 24 = -2x

13 - 24 = -11

-2x = -11

-2x / -2 = x

-11 / -2 = 5 1/2 not this one

81/x - 3 = 6

81x - 3 + 3 = 81/x

6 + 3 = 9

81/x = 9

81/x * x = 81

9 * x = 9x

81 = 9x

81 / 9 = 9

9x / 9 = x

9 = x this one

2x - 3 = 15

2x - 3 + 3 = 2x

15 + 3 = 18

2x = 18

2x / 2 = x

18 / 2 = 9

x = 9 this one

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Can y’all help please
IRISSAK [1]

Answer:

x=square root 63. Basically the radical 63.

Step-by-step explanation:

So in the first triangle with the 3 in it. You have root 3 and use the a^2 +b^2=c^2 formula. So 3^2 + 3^2= x^2 and then when you solve you get radical 18^2 which is equal to radical 18 or square root 18. Then we go to the bigger triangle and we do the same formula but this time we have the c value which is 9. So we do radical 18^2 + x^2 = 9^2 and then solve that and minus 18 from the 81 since the radical goes off the 18 and you get square root63.

Sorry i couldn't use the signs. Sorry If I'm wrong Hope this helps!.

4 0
2 years ago
HELP PLEASE. what is 2878 to the third power
Neporo4naja [7]
Multiply 2878 three times.

23,838,140,152

Hope this helps :)

8 0
3 years ago
Read 2 more answers
Please show me how you got the answer. thanks in advance
lesantik [10]
Write and solve an equation of ratios:

6 inches          1 inch
-------------- = ------------
60 inches            x

Cross-multiplying, 6x = 60, so x = 10 inches (answer)
5 0
3 years ago
Cedarburg's zoo has two elephants. The male elephant weighs 3 3/4 tons and the female
gtnhenbr [62]

Answer:

3.16666667 tons

Step-by-step explanation:

hope this helps have a good evening

3 0
2 years ago
An expression is shown below.<br><br><br> What is the value of the expression?
dsp73

Answer:

Step-by-step explanation:

First you need to set up the equation 2/3+1/4/1/2, and we know that there is a stratgey for dividing fractions as well. But first, we need to find the least common fator for 2/3 and 1/4 which is twelve which would be 8/12+3/12 which is 11/12 and 11/12 dividing by 1/2 is 22/12 since all you need to do is do the keep change flip method which would give you an answer of 1 10/12 or 1 5/6

6 0
2 years ago
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