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allochka39001 [22]
2 years ago
12

1 2/7 +2 1/3x +3/14+x=9

Mathematics
1 answer:
Genrish500 [490]2 years ago
8 0

Answer:

9/4

Step-by-step explanation:

1 2/7=9/7

2 1/3=7/3

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

9/7+7/3x+3/14+x=9

18/14+3/14+7/3x+3/3x=9

21/14+10/3x=9

10/3x=9-21/14

10/3x=9-3/2

10/3x=18/2-3/2

10/3x=15/2

x=(15/2)/(10/3)

x=(15/2)(3/10)

x=45/20

simplify

x=9/4

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Professor York randomly surveyed 240 students at Oxnard University and found that 150 of the students surveyed watch more than 1
BaLLatris [955]

Answer:

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n = \frac{p(1-p)z^2}{ME^2}

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5 0
3 years ago
How to simplify the expression (6+2)2 to the second power-4x3 using order of operations
dimaraw [331]
The answer would be 28.
--
Here's my work:

Remember PEMDAS:
- Parentheses
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Also, remember to always go left to right.

(6+2)^2-4*3
Square everything in the parenthesis.

36+4-4*3
Multiply where you see a multiplication symbol from left to right.

36+4-12
Add.

40-12
Subtract.

28
Done!
--
I hope I was able to guide and help you on this.
4 0
3 years ago
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