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
fenix001 [56]
2 years ago
5

5x-6y=-15 5x+6y=12 use elimination

Mathematics
1 answer:
Vlad [161]2 years ago
4 0
<span>5x-6y=-15
5x+6y=12
---------------add
10x = -3
x = -3/10
x = -0.3

</span>5x+6y=12
5(-0.3) + 6y = 12
6y = 12 + 1.5
6y = 13.5
y = 13.5 / 6

y = 2.25
You might be interested in
The first 5 terms of a sequence are shown below:
nirvana33 [79]

Step-by-step explanation:

To find the formula for the nth term ,

First , find the common difference or common ratio.

Common difference =

T_2-T_1 \\  - 2 - 3 \\  =  - 5

Common ratio =

T_2/T_1 \\  \frac{ - 2}{3}

The common difference applies to the other given numbers for example :

T_3- T_2  =  - 7 - ( - 2) \\  =  - 7 + 2 =  - 5

this proves that it is an arithmetic sequence and the given formula for the nth term of an arithmetic sequence is

T_n =a(n-1)d

Where n = no of terms

a= first term

d= common difference

6 0
3 years ago
One number is nine more than another number. If the sum of the number is 65, find both numbers
Aleonysh [2.5K]

Answer:

Step-by-step explanation:

x+x+9=65

2x=56

x=28

28,37

4 0
3 years ago
Read 2 more answers
Find the area of the composite figure.
AysviL [449]

Answer:

The area will be 834.38

Step-by-step explanation:

hope it helps..

5 0
3 years ago
1. What is 35% of 80?
Alex_Xolod [135]

1. 28

2. 41.66%

3. 88%

4. 36

5. 94.5

6. 30%

7. 83.33%

8. 20%

9. 20%

10. 62.5%

11. 80%

4 0
3 years ago
Help!! I will mark Brainliest!! Please show work! :) Thank You.
SSSSS [86.1K]

Answer:

The center is (20, 0.05)   radius = 9

Step-by-step explanation:

The center is (20, 0.05)   radius = 9

from the general form of the equation:

(x - h)^2 + (y - k)^2 = r^2

we see that  r^2 = 81

so r = 9

3 0
3 years ago
Other questions:
  • What is the difference between standard and factored form?
    11·1 answer
  • Christopher buys 120 hot dog buns for a picnic. He buys two different brands of hot dog buns. Brand X has 12 hot dog buns in a p
    14·1 answer
  • What are the solutions of the equation: x2 – 1 = 15?
    10·1 answer
  • Guys please help :(<br><br> What are the factors?<br> x = -2<br> x=0<br> x=3<br> x=1/4
    12·1 answer
  • Write the quadric equation in standard form and then choose the value of "b" (2x-1) (x+5)=0
    8·1 answer
  • Plz help (x+10)(x+3) expand and simplify ​
    12·1 answer
  • Olivia and Ray walk to school. Olivia walks 1 4of a mile to school. Her walk is 2 3of the distance that Ray walks to school. Wha
    9·1 answer
  • The Average of 16 and x is 21 <br> Find x?<br><br> Please answer quick!
    12·1 answer
  • Show that (x+5)^2-(x-5)^2=20x
    15·1 answer
  • M=p-2b/2 <br> p=57.4<br> b=8.7
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!