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
saw5 [17]
3 years ago
12

Help please!! You’d have to find it algebraically!

Mathematics
1 answer:
raketka [301]3 years ago
8 0

Answer: (-6,-5)

Step-by-step explanation:

2x - 2y = -2 ............ equation 1

3x - y = -13 ................ equation 2

solving by substitution method

from equation 2 , make y the subject of the formula, we have

y = 3x + 13 .............. equation 3

substitute equation 3 into equation 1 , we have

2x - 2 (3x + 13 ) = -2

2x - 6x - 26 = -2

-4x - 26 = -2

-4x = -2 +26

-4x = 24

x = 24/-4

x = -6

substitute x = -6 into equation 3 to get the value of y , we have

y = 3(-6) + 13

y = -18 +13

y = -5

You might be interested in
7.5x10^5-2.9x10^4=? having trouble
alexira [117]
721,000 should be the answer. took me a little while though haha
7 0
2 years ago
a traffic light is red for 25 sec, yellow for 5 sec, and green for 55 sec. what is the probability that when you reach the light
skad [1K]
I guess the answer 1/5
7 0
3 years ago
Read 2 more answers
Three angles of an irregular octagon are 100 degrees, 120 degrees, and 140 degrees. The remaining angles are congruent. Find the
STatiana [176]

Answer:

144°

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° × (n - 2) ← n is the number of sides

Here n = 8 ( octagon ), hence

sum = 180° × 6 = 1080°

let the measure of 1 congruent angle be x

Then sum the 8 angles and equate to 1080

100 + 120 + 140 + 5x = 1080

360 + 5x = 1080 ( subtract 360 from both sides )

5x = 720 ( divide both sides by 5 )

x = 144

Thus each of the 5 congruent angles is 144°

7 0
3 years ago
the functuon y=30+5x represents the cost y (in dollars) of having your dog groomed and buying x extra services. does this situat
Sveta_85 [38]

We want to see if the given function represents a linear function.

We will see that yes, it does.

So we have the function:

y = f(x) = 30 + 5*x

And a general linear function is written as:

y = a*x + b

where a is the slope and b is the y-intercept.

Comparing these two, we can see that both have the same general shape, thus, our function is also a linear function.

A graph of our function also can be seen below, where it is evident that it is a line.

If you want to learn more, you can read:

brainly.com/question/20286983

8 0
2 years ago
Tony bought a car for $1150. It needed some work so Tony spent $740 in repairs. He sold it once his repairs were complete for $3
dalvyx [7]

Answer:

It would be a profit of $1,310

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Find the quotient 3/4 divided by 1/3 =
    8·2 answers
  • What is the solution of x^3 -1 / x^2 + 5x +4 < 0?
    6·1 answer
  • Solve each proportion 1.5/6=10/p p=?
    13·1 answer
  • An office manager booked 61 airline tickets. He booked 8 more tickets on Airlines A than Airlines B. On Airlines​ C, he booked 5
    10·1 answer
  • Suppose we are interested in bidding on a piece of land and we know one other bidder is interested. The seller announced that th
    12·1 answer
  • At a coffee shop, the first 100 customers’ orders were as follows
    9·1 answer
  • What are the features of the parabola modeled by the equation f(x) = x2 - 114x ?
    10·1 answer
  • Which values are solutions of the inequality 5 &lt; y -8<br><br>8 , 9. , 13. , 15. , 20
    9·1 answer
  • 14 x - 3y + 5y - 26 - 7x coefficient <br>​
    15·1 answer
  • notah decides to buy a new phone.He pays $ up front and then will pay the same amount each month for 8 months.The total cost of
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!