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TEA [102]
3 years ago
15

Question 9(Multiple Choice Worth 5 points) (06.01 MC) Solve the system of equations below. x + y = 8 3x + 2y = 21 (3, 5) (5, 3)

(2, 6) (6, 2)
Mathematics
1 answer:
gayaneshka [121]3 years ago
8 0
<h3>Answer:  B.  (5,3)</h3>

How to get this answer:

x+y = 8 solves to y = -x+8 after isolating y. You subtract x from both sides.

Plug this into the second equation and solve for x

3x + 2y = 21

3x + 2( y ) = 21

3x + 2( -x+8 ) = 21 ... replace y with -x+8

3x - 2x + 16 = 21

x + 16 = 21

x = 21-16

x = 5

Use this to find y

y = -x+8

y = -5+8

y = 3

We have x = 5 and y = 3 pair up to get the ordered pair solution (5,3)

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. A frequency distribution helps determine ________. A) the extent of nonresponse B) the extent of illegitimate responses C) the
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<h3>Options A) the extent of non-response and  B) the extent of illegitimate responses are correct</h3><h3>A frequency distribution helps determine <u>the extent of non-response and also the extent of illegitimate responses</u></h3>

Step-by-step explanation:

A frequency distribution helps determine <u>the extent of non-response and also the extent of illegitimate responses </u>

<h3>For :</h3>
  • A frequency distribution helps determine the extent of item non-response.
  • It also indicates the extent of illegitimate responses.
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<h3>Hence Options A) the extent of non-response and  B) the extent of illegitimate responses are correct</h3>
7 0
3 years ago
10*(80+5)6-1
Nesterboy [21]
Parenthesis
Exponent
Multiply
Divide
Add
Subtract
First Parenthesis
So we have 80+5=85.
Now let's rewrite the problem. 10*85*6-1. 
I put the * sign because when you have a number like this: (10+5)1 It means you will subtract it by the number outside of the parenthesis. Now we need to move onto multiplication because there are no exponents so we skip that. 
Lets multiply from left to right.
So we have 10*85*6-1 so lets start with 10*85=850
Now we have
850*6-1 So let's do 850*6=5100
Now 5100-1=5099
So your answer is 5099

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Answer:

Sam would pay $188 and jenna would pay $311.

Step-by-step explanation:

6 0
2 years ago
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