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
daser333 [38]
4 years ago
7

Solve the system of equations given . -2x+5y=-3

Mathematics
1 answer:
algol134 years ago
3 0

For this case we have the following system of equations:

-2x + 5y = -3\\y-15 = 3x

We multiply the second equation by -5:

-5y + 75 = -15x

Now we add the equations:

-2x-5y + 5y + 75 = -3-15x\\-2x + 75 = -3-15x\\-2x + 15x = -75-3\\13x = -78\\x = \frac {-78} {13}\\x = -6

We find the value of the variable "y":

y = 3x + 15\\y = 3 (-6) +15\\y = -18 + 15\\y = -3

THE solution is: (-6, -3)

Answer:

(-6, -3)

You might be interested in
Evaluate the expression3(7+4)2-14/7
adoni [48]

Answer:

64

Step-by-step explanation:

3(7+4)2-14/7

3(11)2-14/7

(33)2-14/7

66-14/7

66-2

64

3 0
3 years ago
PLEASE HELP ME!!!!!!! I NEED HELP! The triangles below are similar. Triangle S R P. Angle S is 54 degrees, R is 41 degrees, P is
JulsSmile [24]

Answer:

Triangle R S P is similar to triangle Z X Y

Triangle S R P is similar to triangle X Z Y

Triangle R P S is similar to triangle Z Y X

7 0
3 years ago
Read 2 more answers
Andy, Bob, and Chuck are dividing 4 pies: apple, cherry, lemon, and pecan. The value system of the players are as follows.
kumpel [21]

Answer:

1.3

Step-by-step explanation:

each person gets 1 1/3 of a pie

6 0
4 years ago
Joshua uses his thermometer and finds the boiling point of ethyl alcohol to be 75o C. He looks in a reference book and finds tha
Crazy boy [7]

Answer:

the percent error is 6.25%

Step-by-step explanation:

The computation of the percent error is shown below:

Percent error is

= (Experimental value - accepted value) ÷ (experimental value) × 100

= (80 degrees - 75 degrees) ÷ (80 degrees) × 100

= (5 degrees) ÷ (80 degrees) × 100

= 0.0625 × 100

= 6.25%

hence, the percent error is 6.25%

We simply applied the above formula so that the correct value could come

And, the same is to be considered

5 0
3 years ago
Read 2 more answers
16 x 55 ////////////////////
frosja888 [35]

Answer:

880

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Compare linear<br> functions using______ and graphs.
    9·1 answer
  • Which is largest? 1.2 km ,120600 cm 1220000 mm ,120 m
    5·1 answer
  • Find the area of the shaded region.
    5·1 answer
  • The diameter of a sphere is 4 centimeters. Which represents the volume of the sphere?
    8·1 answer
  • What is the solution to the system of equations? 7x-2y= -24 5x+5y=15
    7·2 answers
  • 4x + 16 less than or equal to 18
    6·2 answers
  • HELPPPPP MEEEEE!!! #7
    12·1 answer
  • Here's more free points again! Hope this helps you!
    14·2 answers
  • Fill in the blank. (5 + 2) × 10 = (5 × 10) + (2 × __ )
    14·1 answer
  • Please convert these!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!