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
Katen [24]
3 years ago
11

Solve the system of equations by substitution. (write your answer as an ordered pair) −5x + y = −2 −3x + 6y = −12 html editor ke

yboard shortcuts
Mathematics
1 answer:
k0ka [10]3 years ago
4 0
<span> −5x + y = −2 ----------------- (1)
 −3x + 6y = −12 --------------(2)

From (1):

-5x + y = -2
y = 5x - 2 --------------- sub into (2)
-3x + 6 (5x - 2) = - 12
-3x + 30x - 12 = -12
27x = -12 + 12
27x = 0
x = 0 ---- sub into (1)
-5(0) + y = -2
0 + y = -2
y = -2

answer: (0, -2)



</span>
You might be interested in
Raheem's entire workout consisted of 15 minutes of warm-up exercises, 30 minutes of lifting weights,and 45 minutes on the treadm
Sindrei [870]

Answer:

b

Step-by-step explanation:

Time taken for the total workout = 15 + 30 + 45 = 90 minutes

Time taken for lifting weight : total time = 30 : 90

                                                                 = 1 : 3

4 0
2 years ago
(3x-3)° [6{x-10)]° what is the value of x
DerKrebs [107]
Solve for x over the real numbers:18 ° (x - 1) (x - 10 ° x) = 0
Divide both sides by 18 °:(x - 1) (x - 10 ° x) = 0
Split into two equations:x - 1 = 0 or x - 10 ° x = 0
Add 1 to both sides:x = 1 or x - 10 ° x = 0
Collect in terms of x:x = 1 or (1 - 10 °) x = 0
Divide both sides by 1 - 10 °:Answer:  x = 1 or x = 0
4 0
3 years ago
Read 2 more answers
Mrs. Gomes found that 40% of students at her high school take chemistry. She randomly surveys 12 students. What is the probabili
VMariaS [17]
Binomial formula is :
P ( k = 4 ) = nCk * p ^{k}(1-p) ^{n}= \\ =495 * 0.4 ^{4}* ( 0.6 ) ^{8}=
= 495 * 0.0256 * 0.0167961 =
= 0.21284 ≈ 0.213
Answer: C ) 0.213
3 0
3 years ago
Read 2 more answers
What number is not part of the domain of f(x)= 3/ x+5<br> (3 over x + 5)
nignag [31]
-5, you never want the denominator to equal zero or else it doesnt exist!

x+5=0
x=-5
7 0
2 years ago
Express this in standard form 5.4×10^1​
Naily [24]
Well it would just be 54 since you just need to move the decimal over by 1.

So 5.4x10= 54
7 0
3 years ago
Other questions:
  • A box in the shape of a rectangular prism has a dimension of 30 meters x 27 meters x 28 meters what is the surface area of the b
    8·1 answer
  • The following number sentence is _____________.<br><br> (9 ÷ 5) ÷ 2 = 9 ÷ (5 ÷ 2)
    12·2 answers
  • Plz help me with this I have no idea what to do
    5·1 answer
  • Question number 9 how to solve
    14·2 answers
  • Mr Anderson wrote 7×9×10.3
    14·1 answer
  • Anyone know how to simplify a whole number into a mixed number or a improper fraction???
    13·1 answer
  • A<br> B<br> C<br> D<br> I need help
    14·2 answers
  • Find the measure of the missing angles.
    6·1 answer
  • This equation shows how the number of pies Larry can bake is related to the number of additional cups of sugar he buys.
    12·1 answer
  • We toss a fair coin 4 times. Let X count heads. Find P(X = 0) to nearest ten thousandth (4 decimal places).
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!