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
elena55 [62]
2 years ago
15

Solve using elimination. 9x − 9y = –18 10x − 9y = –13

Mathematics
1 answer:
masha68 [24]2 years ago
5 0

Answer:

y = 5, y = 7

Step-by-step explanation:

You might be interested in
Helppppppppppppp i need this homework done by today
lbvjy [14]

Answer: 13. -68

14. 36

15. -36

16. -3

17. 10

18. -4

19. 1310 ft

20. 330 ft

Step-by-step explanation:

13. 34*(-2)=-68

14. -9*(-4)=

-(9*(-4))=

-(-36)=36

15. 12*(-3)=-36

16. -12/4=-3

17. -20/(-2)=

20/2=10

18. 200/(-50)=-4

19. -1640*(-1)-(-330*(-1))=

1640-(-330*(-1))=

1640-330=1310 ft

20. -990*(-1)-(-660*(-1))=

990-(-660*(-1))=

990-660=330 ft

7 0
1 year ago
Help !!!<br>See question in image.<br>Please show workings .<br>​
ivolga24 [154]

Answer:

see explanation

Step-by-step explanation:

Given f(x) then the derivative f'(x) is

f'(x) = lim(h tends to 0 ) \frac{f(x+h)-f(x)}{h}

      = lim ( h to 0 ) \frac{4(x+h)^2-2-(4x^2-2)}{h}

      = lim ( h to 0 ) \frac{4(x+h)^2-2-4x^2+2}{h}

      = lim( h to 0 ) \frac{4x^2+8hx+4h^2-4x^2}{h}

      = lim( h to 0 ) \frac{8hx+4h^2}{h}

      = lim ( h to 0 ) \frac{4h(2x+h)}{h} ← cancel h on numerator/ denominator

      = lim ( h to 0 )  4(2x + h) ← let h go to zero

f'(x) = 8x

5 0
2 years ago
-y=x-2<br> What’s the answer
Georgia [21]

Answer: -y = - 2 x

Step-by-step explanation:

5 0
3 years ago
Mary has 4 flower pots with 4 different designs. She likes to display them on her window sill. How many different ways can she d
xenn [34]
She can display them 16 different ways. 
8 0
3 years ago
Read 2 more answers
The girl to boy ratio is 3 to 7 if there are 50 students total how many boys
Naddik [55]

Answer:

15 girls, 35 boys

Step-by-step explanation:

Step 1:

3 : 7       Ratio

Step 2:

3x + 7x = 50        Substitute

Step 3:

10x = 50     Add

Step 4:

50 ÷ 10     Divide

Step 5:

x = 5

Answer:

15 girls, and 35 boys     Multiply

Hope This Helps :)

5 0
3 years ago
Other questions:
  • Please help me on this! Thank you!
    9·1 answer
  • PLEASE HELP ME WITH THIS!!!
    7·1 answer
  • Slope.<br> 31) through:(-1,-4). slope = -9<br> Please help
    15·1 answer
  • wo positive integers are 3 units apart on a number line. Their product is 108. Which equation can be used to solve for m, the gr
    11·2 answers
  • Help plz!!!!!!!!.!.!.!.!.!.!.!.!.!!
    10·2 answers
  • The total cost for two family cars was $71,1482 the cost of one car was $38,295 write an equation using a variable to represent
    6·1 answer
  • Answer the following questions CORRECTLY I will know if this is wrong. I WILL REPORT ANY INCORRECT ANSWERS!
    8·2 answers
  • What is the measure of angle 2 and angle 5?<br> I need answer in 12 hours pls:)
    12·1 answer
  • Divide 45 pens between devika bhoomika in the ratio 4:5​
    13·1 answer
  • I need help please:)
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!