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Sedaia [141]
2 years ago
15

5x-3y=21 Solve for Y

Mathematics
1 answer:
Andrews [41]2 years ago
7 0
You first subtract 5x from both sides and end up with -3y=21-5x. In order to isolate the variable you need to divide -3 from both sides. Your equation would then be y= -7+ 5/3x. I hope this helps love! :)
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7 0
3 years ago
Four dice, each numbered in the usual way from 1 to 6, are colored white, red, green and blue respectively. After casting them a
Delvig [45]
Suppose that the numbers that the boy being cast from the dice are 3 4 5 6.
 3 stands for white, 4 stands for red, 5 stands for green and 6 stands for blue.
  We need to interpret the statement given above.   The set of numbers is 3 4 4 6 6 5.
First, we need to get the mean of this set. Add all the numbers and divide by the total number that the set has. 
 3+4+4+6+6+5=  28 / 6
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For the variance, we will use the mean above ( 4.67 )

1. Squared the mean and subtract how many numbers are present in the set. 
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2. Next squared all the numbers present in the set and add the result 

  3x3= 9 , 4x4= 16, 4x4=16, 6x6=36, 6x6=36, 5x5=25

9+16+16+36+36+25= 138 

3. Subtract the result of #2 with #1
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4. Subtract 1 from the total numbers you have in your set

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5. Divide the result we have in #3 with the result of #4

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So the variance is 26.872 
5 0
2 years ago
Can someone help me out rq pls? Much would be appreciated.
stich3 [128]
I think your answer is B. -1/2

Explanation: the rise is -4 and the run is 8. If u divide those by 2, you get -2 and 4. You divide that by half and get -1/2??
8 0
2 years ago
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Vilka [71]
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7 0
3 years ago
Write an algebraic expression to represent the following verbal expression
DaniilM [7]
The answer is B. They are saying to cube the difference therefore you have (x-43) cubed
4 0
2 years ago
Read 2 more answers
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