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Alexus [3.1K]
3 years ago
8

How would u solve this liner system?

Mathematics
1 answer:
ikadub [295]3 years ago
8 0
We can solve it by substitution: y = - 3 x - 1.
So the 2nd equation becomes:
4 x + 3 * ( - 3 x - 1 ) = 2
4 x - 9 x - 3 = 2
- 5 x = 2 + 3
- 5 x = 5
x = 5 : ( - 5 ) = -  1
y = - 3 * ( - 1 ) - 1 = 3 - 1 = 2
Answer:  x = - 1,  y = 2.
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The dot plots below show the scores for a group of students for two rounds of a quiz: Two dot plots are shown one below the othe
miskamm [114]

Answer:

The inference that can be made using the dot plot is:

    The range of round 1 is greater than the round 2 range.

Step-by-step explanation:

<u>Round 1:</u>

Score                Frequency

  1                          0

  2                          2

  3                          3

  4                          2  

  5                          1

Hence, the minimum score of Round 1 is: 2

maximum score is: 5

Hence, Range=Maximum value-Minimum score

                      =5-2

                       =3

Similarly, <u>Round-2</u>

Score                Frequency

  1                          0

  2                         0

  3                          0

  4                          4  

  5                          4

Hence, the minimum score of Round 1 is: 4

maximum score is: 5

Hence, Range=Maximum value-Minimum score

                      =5-4

                       =1

The scores of round 2 are higher than round-1.

Since round 2 have a higher frequency for higher scores as compared to round-1.

Hence, Range of round 1 is greater than the range of Round-2.

 

6 0
3 years ago
Read 2 more answers
A right rectangular prism has these dimensions:
ki77a [65]
Volume of rectangular prism = 1 1/3 x 5/6 x 2/3 = 4/3 x 5/6 x 2/3 = 20/27

Volume of cube = 1/6 x 1/6 x 1/6 = 1/216

Number of cubes that will pack the rectangular prism = 20/27 / 1/216 = 160
5 0
3 years ago
Read 2 more answers
Emily buys a CD for $12.07,including tax. She gives the clerk a $20 bill. How many change should she receive?
soldi70 [24.7K]

Answer:

$7.93

Step-by-step explanation:

20 - 12.07 = 7.93

8 0
3 years ago
Consider the sequence 3, 6, 12, 24, 48......
svp [43]

Answer:

9th term of the sequence.

Step-by-step explanation:

well, all they are doing in this problem is adding the numbers. 3+3=6+6=12+12=24+24=48 and so on. If you keep going, you'll get 48+48=96+96=192+192=384+384=768+768=1536

7 0
3 years ago
X fraction 2 - 5 = 25
xxTIMURxx [149]

Answer:

X=60

Step-by-step explanation:

X fraction 2 - 5 = 25

X/2-5=25

X/2 =25+5

X/2=30

X=60

60 is the answer

6 0
3 years ago
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