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labwork [276]
4 years ago
14

How many solutions does this system of equations have? y = –2x + 3 y = –2x – 1

Mathematics
1 answer:
Nadusha1986 [10]4 years ago
6 0

Answer:

Step-by-step explanation:

in y = mx + b form, the slope is in the m position and the y int is in the b position

y = -2x + 3.....slope is -2 and y int is 3

y = -2x - 1...slope is -2 and y int is - 1

same slope, different y int's....means parallel lines...NO SOLUTION

learn this...it helps

same slope, different y int's = no solution

different slopes, different y int's = 1 solution

same slope, same y int's = infinite solutions

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Sean and Rachel we’re both born on April 17.
ipn [44]

Step-by-step explanation:

let Sean be 4 years old and Rachel be 2 years old on April 17

part (A)

R=S-2 --(A)

is an equation that can be used to determine Rachel's age

likewise,

S=R+2--(B)

can be used to determine Sean's age

part (B)

use equation(A) for table (1) and equation(B) for table 2

Table (1) : R=S-2=11-2= R=9

12-2=10=»R=10

13-2=11=»R=11

14-2=12=»R=12

15-2=13=»R=13

16-2=15=»R=14

likewise use equation B for the table (2)

the outputs must be 3,4,5,6,7,8

and 9

5 0
3 years ago
Please help with #31!!! BRAINLIEST to correct answer!!
spin [16.1K]

Answer:

the view would be A I do believe

good luck!

5 0
3 years ago
Read 2 more answers
Ravi needs to buy some pencils. Brand A has 36 pencils for $8.52. Brand B has a pack of 48 pencils for $9.98. Find the unit pric
Aliun [14]

For this question you would divide $8.52 by 36 pencils to get about $0.24 per pencil for brand A rounded to the nearest cent. Then divide $9.98 by 48 pencils to get about $0.21 per pencil for brand B rounded to the nearest cent.

6 0
3 years ago
Mr Tarun earns dollar $12.50 a day how much would he earn if he works for 6 days​
WARRIOR [948]

Answer:

$75

Step-by-step explanation:

Question:Mr Tarun earns dollar $12.50 a day how much would he earn if he works for 6 days?

Solution:$12.50 in a day

12.50 multiple by 6

=75

Ans.$75

HOPE IT HELPS

CARY ON LEARNING

8 0
2 years ago
Read 2 more answers
Solve this system of equations
olga_2 [115]

Answer:

D) x = 4, y = -2, z = 3

Step-by-step explanation:

x = 3z − 5

2x + 2z = y + 16

2(3z - 5) + 2z = y + 16

6z - 10 + 2z = y + 16

8z = y + 26 ---> (A)

7x − 5z = 3y + 19

7(3z - 5) - 5z = 3y + 19

21z - 35 - 5z = 3y + 19

16z = 3y + 54 ---> (B)

8z = y + 26

16z = 3y + 54

2(y + 26) = 3y + 54

2y + 52 = 3y + 54

y = -2

8z = -2 + 26

8z = 24

z = 3

x = 3(3) - 5

x = 4

8 0
3 years ago
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