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
NISA [10]
3 years ago
9

How can you solve a system of linear equations? How can you check your solution?

Mathematics
1 answer:
natali 33 [55]3 years ago
3 0
<span>After you solve a system of linear equations, you will get an ordered pair (x,y). Replace x with whatever number you obtained for x, and replace y with whatever number you obtained for y. If both your equations are true upon simplifying, you know it is correct.</span>
You might be interested in
The angle of elevation from a pothole to the top of a lamp post is 33°
Blizzard [7]

Answer:

a) 28.6ft

Step-by-step explanation:

tan(33)= x/44

x/44= tan(33)

x/44=.65

x= 44* .65

x= 28.6

8 0
3 years ago
The grades of a science test are normally distributed. Thanh finds that his grade on the test has a z-score of –2.5. Which state
liraira [26]
From all those aforementioned, the true statement is: Thanh’s grade is 2.5 standard deviations below the mean of the test grades. 
7 0
3 years ago
Read 2 more answers
A freight train leaves a station at noon traveling at 30 mph. A passenger train leaves 1 hour later traveling at 50 mph. At what
KIM [24]

Answer:

t=2.5 hours after the freight train leaves the station they will meet.

Step-by-step explanation:

30t = 50 (t - 1)

30t = 50t - 50

30t - 50t = -50

-20t = -50

t= -50/-20

Therefor, t=2.5 hours after the freight train leaves the station they will meet.

3 0
3 years ago
Which events are independent? Select each correct answer.
krok68 [10]

Answer:

Independent events are those events when the happening of one event does not affect the happening the other event.

In the given example we have the following events as independent:

A) A spinner is spun and a coin is flipped

C) Two number cubes are rolled at the same time.

Both these events are independent because the happening of one event does not affect the other in both the cases.

But the options B and D are not independent because in both the cases happening of first event affects the happening of the next event. Therefore, the correct options are A and C.  

5 0
4 years ago
Read 2 more answers
Solve the following literal equations for the specified variable <br> U+ka=ba,for a
Ad libitum [116K]
The answer would be a=u divided by b-k
7 0
4 years ago
Other questions:
  • I need step by step explanation for this!! &gt;33
    6·2 answers
  • A $900 deposit for 20 years at a simple interest rate of 4%​
    12·1 answer
  • Of total students in class 27 students took a quiz if this was 90 percent of the class how many students are there in total
    7·2 answers
  • Write a quadratic function when given -2 and 2/3 as the zeros​
    11·1 answer
  • Find the value of x. Show your work.
    9·1 answer
  • What 21 divided by 21​
    13·2 answers
  • Find the linearization Upper L (x comma y )of the function f (x comma y )at Upper P 0. Then find an upper bound for the magnitud
    10·1 answer
  • I need for missing test
    5·2 answers
  • F(x) = 2x2 + 4x - 1. Find f(3).
    7·2 answers
  • 1+7<br> Please help <br> !!!!! Let’s see who’s smart
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!