1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Harrizon [31]
2 years ago
15

Y = -3 x - 5y = 7 I have the answer I don’t know how to show my work

Mathematics
2 answers:
Leno4ka [110]2 years ago
8 0

Answer:

Step-by-step explanation:

To use substitution in this problem, you find the Y which ='s -3. That we have clear. Now, the second equation becomes x - 5(-3) =7. A negative times a negative is a positive, so 15. Now, we have x + 15 = 7. Subtract 15 from 7 to get x = -8. Your coordinates, or your answer, will be (-8, -3)

Free_Kalibri [48]2 years ago
4 0

Answer:

  (x, y) = (-8, -3)

Step-by-step explanation:

"Show your work" means write down the work you did.

Very likely, you put -3 where y is in the second equation. That is what "substitution" means.

  x -5(-3) = 7

  x +15 = 7 . . . simplify

  x = -8 . . . . . subtract 15 from both sides

The solution to this system is ...

  (x, y) = (-8, -3)

You might be interested in
Use the graph below to fill in the blank with the correct number
aniked [119]
When we try to solve for f(-2), we are trying to find the range of the point that has a domain of -2.  On the graph, when x equals -2, f(x) equals 2.  The blank is 2.
8 0
3 years ago
PLEASE HELP ME
asambeis [7]
For the equation y - x < 0,
y < x
The shaded portion will be under the dashed line joining points (-2, -2) and (3, 3).

for the equation x - 1 > 0,
x > 1
The shaded portion will be to the right of the dashed line joining points (1, 5) and (1, -3).

The portion affected by the two shadings will be the portion common to the right of the dashed line joining points (1, 5) and (1, -3) and under the dashed line joining points (-2, -2) and (3, 3).
Therefore the correct answer is option c.
3 0
3 years ago
Read 2 more answers
Determine whether 6 is a solution of the equation 2x - 5 = 1.
kupik [55]

Answer:

B

Step-by-step explanation:

To determine if x = 6 is a solution, substitute x = 6 into the left side of the equation and if equal to the right side then it is a solution.

2(6) - 5 = 12 - 5 = 7 ≠ 1

Then x = 6 is not a solution of the equation since a false statement results after replacing x with 6 (B)

7 0
3 years ago
Fifty people were surveyed about their preference between chocolate and vanilla cake. The following two
GuDViN [60]

Answer:

TOTAL

Male

18

6

4

28

Female

15

5

2

22

TOTAL

33

November

6

50

In This sample, are the events "female" and "prefers chocolate" mutually exclusive

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Which fraction has a terminating decimal as its decimal expansion?
alex41 [277]
'One third' as a decimal is 1 ÷ 3 = 0.333333..... ⇒ The decimal is recurring

'One fifth' as decimal is 1 ÷ 5 = 0.2 ⇒ The decimal terminates at the tenth value

'One seventh'  as decimal 1 ÷ 7 = 0.142857142857.... ⇒ The decimal is recurring for every digit between 1 and 7

'One ninth' as decimal 1 ÷ 9 = 0.111111.... ⇒ The decimal is recurring 

Answer: one fifth
5 0
4 years ago
Read 2 more answers
Other questions:
  • In the square ABCD, AE = 3x + 5 and BD = 10x + 2. What is the length of line AC?
    12·1 answer
  • Miss Connor asks her class to guess her mystery number she tells him this number has two digits is a prime less than 20 and a fa
    5·1 answer
  • HELP ME ASAP PLEASEEE!!! &lt;3
    9·2 answers
  • The equation of line S is y = 8x − 7 .
    9·2 answers
  • The school That Darryl goes to is selling tickets to a choral performance on the first day of ticket sales the school sold nine
    10·1 answer
  • HELP i don’t know how to do this
    15·2 answers
  • Can someone help Me ? I suck at Riemann sums in general
    11·1 answer
  • What is the area of the polygon given below?
    6·1 answer
  • One morning, Muhammad's deli shop sells 15 sandwiches in 10 minutes. If the shop continues to sell sandwiches at the same rate,
    10·1 answer
  • Solve for x<br> 7.8<br> 6.6<br> 3.6<br> 3
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!