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
laiz [17]
3 years ago
14

What is the solution to the system of equations shown below?

Mathematics
1 answer:
Alexxandr [17]3 years ago
7 0

Answer:

  b.  (1, 3, ­-2)

Step-by-step explanation:

A graphing calculator or scientific calculator can solve this system of equations for you, or you can use any of the usual methods: elimination, substitution, matrix methods, Cramer's rule.

It can also work well to try the offered choices in the given equations. Sometimes, it can work best to choose an equation other than the first one for this. The last equation here seems a good one for eliminating bad answers:

  a: -1 -5(1) +2(-4) = -14 ≠ -18

  b: 1 -5(3) +2(-2) = -18 . . . . potential choice

  c: 3 -5(8) +2(1) = -35 ≠ -18

  d: 2 -5(-3) +2(0) = 17 ≠ -18

This shows choice B as the only viable option. Further checking can be done to make sure that solution works in the other equations:

  2(1) +(3) -3(-2) = 11 . . . . choice B works in equation 1

  -(1) +2(3) +4(-2) = -3 . . . choice B works in equation 2

You might be interested in
Which inequalities is -5 a possible solution?
coldgirl [10]

Answer:

1st, 3rd and second last one

5 0
2 years ago
What is 5/9*2 4/ equal
Kobotan [32]
The answer is 1.11111
6 0
3 years ago
6(a-5)=105 solve for A
Paraphin [41]

Answer:

i think its 45/2

decimal form= 22.5

6 0
3 years ago
Help please !!!!! i dont know how
dem82 [27]

hello since we are simplifying 15^-3*15^6 all we have to do is add the exponents when we add them we end up with an answer of 15^3

8 0
3 years ago
-2.4n-3 and -7.8n +2
Whitepunk [10]

Answer:

the correct answer is 12n+2

Step-by-step explanation:


6 0
3 years ago
Other questions:
  • Use the system of equations to answer the question.
    12·1 answer
  • A package states that there are 60 calories in 12 crackers and 75 calories in 15 crackers. Since the relationship is proportiona
    10·1 answer
  • How do I get this answer (4x2-6y2-7)(6x2+7)
    14·1 answer
  • Events a, b, and c in a sample space have p(a)=0.2, p(b)=0.4, and p(c)=0.1. find p(a ∪ b ∪
    8·1 answer
  • The price of an item is $21.75. You give the cashier a $20 and a $10 bill. What is the change?
    14·2 answers
  • PLZZZZ HELP ME!!!! the graph of f(x),shown below,resembles the graph of g(x)=x^2 but it has been changed somewhat. which of the
    5·2 answers
  • Can some one pls help?? its due tomorrow and ive already posted the question once but nobody listened :(
    10·1 answer
  • Mrs. Cherry earns an 3% commission on homes she sells. A buyer has agreed to buy a home for 94% of its original selling price. T
    5·2 answers
  • Anyone got a online class or some i can troll
    9·1 answer
  • Plz help <br> I will mark Brainlyist
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!