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eimsori [14]
3 years ago
8

The sum of 4 numbers is 1230. The average of 3 of them is 293. What is the fourth number?

Mathematics
2 answers:
OverLord2011 [107]3 years ago
8 0
351 because 293 multiplied by 3 = 879, and 1230 - 879 = 351
LenaWriter [7]3 years ago
7 0
I think your answer is 351
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The Sydney cricket ground can contain a football field of approximately 147m by 136m. What distance would be covered by walking
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The answer is 566m because 147 plus 147 and 136 plus 136 equals 566
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Please show work i rlly need this :)
makvit [3.9K]

Answer:

10/16 (written as a fraction)

Step-by-step explanation:

Starting point

-(-2x+1)=9-14x

Solve the minus sign

2x-1=9-14x

Swap the Xs and the numbers, changing sign

2x+14x=9+1

Do calculations

16x=10

Result

x=10/16

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ch4aika [34]

Answer:

<h2>A)x=3/2 y=½</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • system of linear equation
  • PEMDAS
<h3>let's solve:</h3>
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  1. \sf substitute \: the \: value \: of \: y :  \\  \sf  - x + 2 = 3x - 4
  2. \sf add \: x \: to \: both \: sides :  \\  \sf  - x + x + 2 = 3x + x - 4 \\  \sf 4x - 4 = 2
  3. \sf add \: 4 \: to \: both \: sides :  \\  \sf xx - 4 + 4 = 2 + 4 \\ 4x = 6
  4. \sf divide \: both \: sides \: by \: 4 :  \\  \frac{4x}{4}  =  \frac{6}{4}  \\ x =  \frac{3}{2}

let's figure out y

  1. substitute the got value of x into the second equation: y=3*3/2 -4
  2. simplify multiplication:9/2 -4
  3. simplify division:4.5-4
  4. substract:0.5 alternate form:y=½

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3 years ago
A time series that shows a recurring pattern over one year or less is said to follow a Select one:______
zaharov [31]
The answer is C. Seasonal pattern
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