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
dem82 [27]
3 years ago
14

What coordinate below is a solution to the system of equations : 6x+7y =-9 and -4x-5y=5?

Mathematics
1 answer:
mote1985 [20]3 years ago
6 0
6x + 7y = -9

-4x - 5y = 5

We can use either substitution or elimination. I prefer substitution so I will explain it that way. You can use elimination as well.

We can solve for x first so we will need to substitute y in terms of x.

6x + 7y = -9
7y = -9 - 6x
y = (-9 - 6x)/7

Plugging this into the other equation:

-4x - 5[(-9 - 6x)/7] = 5
-4x + (45 + 30x)/7 = 5
-28x  + 45 + 30x = 35
2x + 45 = 35
2x = - 10
x = -5

Insert this into the other equation to solve for y.

6(-5) + 7y = -9
-30 + 7y = -9
7y = 21
y = 3

Your answer should be (-5, 3). Hope this helps!
You might be interested in
How many grams are there in 4 kilograms
AveGali [126]
There are 4,000 Grams in 4 Kilograms
8 0
2 years ago
What is -3i-4=i+3 in
lara31 [8.8K]

Answer:

-3i - 4 = i + 3

-3i - i = 3 + 4

-4i = 7

i = 7/-4 or -7/4

6 0
3 years ago
Help me fast I have 30 min to finish the testtt!!!!!!!!!
CaHeK987 [17]
B and D
Hope this helps(just for word count lol)
6 0
2 years ago
Jackson played a video game for 1/6 for hour. Hailey played a video game for 1/3 hour. Who played the video game for a greater a
viva [34]

Answer:

hailey played the game longer (1/3 hour).

Step-by-step explanation:

You are deciding which is greater: 1/6 or 1/3.in this case, a smaller denominator (such as 3) produces a greater value.1/3 has a smaller denom. than does 1/6, so 1/3 is greater than 1/6.hailey played the game longer (1/3 hour).

5 0
3 years ago
1) Two similar rectangles are shown. Which statement is true? A) The area of rectangle B is 1 3 the area of rectangle A. B) The
Arturiano [62]

Answer: C

Step-by-step explanation:

We know the scale factor is 6/2=3.

A) False. The ratio of the side lengths, not the areas, is 1 to 3.

B) False. Rectangle B is larger than Rectangle A.

C) The square of the ratio of the side lengths is the ratio of the areas.

D) False. The ratio of the side lengths, not the areas, is 1 to 3.

3 0
2 years ago
Other questions:
  • 1+123457890134875986​
    15·1 answer
  • 100p for an answer please
    10·1 answer
  • A person-hour is a unit of measure representing one person working for one hour. A construction foreman estimates that it will t
    10·1 answer
  • What is tan 30°?<br> | sa"<br> зо“<br> -<br> -<br> оооооо<br> - 5<br> 3<br> ~|
    11·1 answer
  • Campsite f and g are on opposite sides of the lake a survey crew made measurements on the diagram. What is the distance between
    5·1 answer
  • Tony Owens a special pet store that sells only snacks and elephants currently he has a total of 11 snacks and elephants in stock
    8·1 answer
  • Factor completely.<br> n^4 - 1
    14·2 answers
  • Plz help
    10·1 answer
  • Can someone help me plz
    14·1 answer
  • Cosx.cosecx + sinx.secx
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!