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
tresset_1 [31]
3 years ago
14

Using elimination (combination), which variable will be eliminated first? 5x-y=-21x+y=-3

Mathematics
1 answer:
stiks02 [169]3 years ago
7 0

Answer:

Option B) The variable Y will cancel out first.

Step-by-step explanation:

we have

5x-y=-21 ----> equation A

x+y=-3 ----> equation B

Solve by elimination

Adds equation A and equation B

5x-y=-21

x+y=-3

--------------

5x+x=-21-3 ----->variable y will be eliminated first

6x=-24

x=-4

You might be interested in
What is the slope of the line that passes through the points (-4, -9) and (5, 3)
egoroff_w [7]

Answer:

4/3

Step-by-step explanation:

Moving from (-4, -9) to (5, 3), x (the 'run') increases by 9 from -4 to 5, and y (the 'rise') increases by 12 from -9 to +3.  Thus, the slope of the line connecting the two points is

m = rise / run = 12/9 = 4/3

It may help to think of the change in x (9) as the horizontal leg of a right triangle and the change in y (12) as the vertical leg.  Then  

m = (vertical leg length) / (horizontal leg length) = 12/9 = 4/3

5 0
3 years ago
Greg budgeted carefully and by the time he turned 30 his retirement account balance was $22,000. If that amount grew at a rate o
Ratling [72]

Answer:

$618,253.61

Step-by-step explanation:

30 to 65 is 35 years

22000 × (1 + 10/100)³⁵

22000 × 1.1³⁵

618253.6107

6 0
3 years ago
Units of Length
grin007 [14]

the answer is:

78.7 (i rounded it to the nearest tenth)

7 0
3 years ago
I don’t understand this either
trasher [3.6K]
It is a part of slope form ( intercept
7 0
3 years ago
Read 2 more answers
I need help with 3 and 4 please
STatiana [176]

Answer:

How are we suppose to answer this on this website?

Step-by-step explanation:


4 0
3 years ago
Other questions:
  • Mr. Shamir employs two part-time typists, Inna and Jim, for his typing needs. Inna charges $15 an hour and can type 6 pages an h
    5·1 answer
  • Ifx+y-1=1-(1-x), what is the value of y?.
    5·1 answer
  • Use the Ratio Test to determine the convergence or divergence of the series. If the Ratio Test is inconclusive, determine the co
    13·1 answer
  • PLEASE HELP WITH MATH AND BEST GETS BRAINLIEST. PLEASE SHOW WORK.
    13·2 answers
  • –12 – (–7) <br><br> A. 5 <br> B. -19 <br> C. -5 <br> D. 19
    7·2 answers
  • Simplify the expression, then evaluate when x=5 and y=6. x(y+4)+3(2x+7y)
    13·1 answer
  • If you drive at a speed of 50 mph how many hours will it take to drive 1340 miles
    15·1 answer
  • Hi ihadbivbwiehfuhqichiqducbqiwudbiuebqviuqivubqiubudfb
    7·1 answer
  • Chrick qwuestshon
    5·1 answer
  • PRECALC AB
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!