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Sunny_sXe [5.5K]

1 year ago

5

Which classification describes the system of linear equations?

1 answer:

Aleksandr [31]1 year ago

3 0

Answer:

A system of two linear equations can have one solution, an infinite number of solutions, or no solution. Systems of equations can be classified by the number of solutions. If a system has at least one solution, it is said to be consistent . If a consistent system has exactly one solution, it is independent .

Step-by-step explanation:

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1) What is 20% of 20?<br> 2) what is 15 is what percent of 30?<br> 3) 50 is 50% of what?

N76 [4]

Hi there!

The word "of" is the same thing as a multiplication sign.

1)

20% = 0.2

0.2 × 20 = 4

2)

? × 30 = 15

divide each side of the equation by 30

? = 0.5

0.5 = 50%

3)

50% = 0.5

0.5 × ? = 50

divide each side of the equation by 0.5

? = 100

There you go! I really hope this helped, if there's anything just let me know! :)

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Rashid [163]

her new balance is $105.

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Buying one movie ticket online costs $16.50. Two tickets cost $30.50. Assuming that the relationship is linear, use the drop dow

HACTEHA [7]

Answer:

$C(n)=14n+2.50$

Step-by-step explanation:

Let

n -----> number of tickets

C ----> represent the cost of buy n tickets online

we have the ordered pairs

(1,16.50) and (2,30.50)

<em>Find out the slope of the linear equation</em>

The formula to calculate the slope between two points is equal to

$m=\frac{C2-C1}{n2-n1}$

substitute the values

$m=\frac{30.50-16.50}{2-1}$

$m=14$

<em>Find the equation of the line in slope intercept form</em>

$C=m(n)+b$

we have

$m=14$

$point(1,16.50)$

substitute

$16.50=14(1)+b$

$b=16.50-14$

$1b=2.50$

substitute

$C(n)=14n+2.50$

The domain of the function is all positive integers (whole numbers) including zero

{0,1,2,3,4,...}

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3 years ago

Kirsten calculated the mean of 10 quiz scores. Later she was told there was an error in grading one of her quizzes. A quiz score

inessss [21]

The mean will be 5 points higher...so...c would be the answer!

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What is (3 plus 1/2) times 12

Fynjy0 [20]

9 is the answer!!!!!!!!!!!!!!!!!!!!!!

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