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
irakobra [83]
4 years ago
8

Need help with this!!!!!!!!

Mathematics
1 answer:
zzz [600]4 years ago
4 0
The linear combination method is the same as the elimination method.  Let's multiply the second equation by -2 so the x terms cancel each other out. When we do that we get a system of 2x-3y=13 and -2x-4y=8.  The x-terms cancel each other out giving us -7y=21 and y = -3.  Now sub -3 into one of the equations to solve for x.  x+2(-3)=-4, and x - 6 = -4.  x = 2.  So the solution for our system is (2, -3)
You might be interested in
Can someone explain how to do this
jolli1 [7]

Answer:

20%

Step-by-step explanation:

im not really good at percentages but from what i know you first make it a fraction by adding all the numbers together to get 55(denominator). then for the numerator you take the section that they want(11). 11/55 is equal to 20/100(divide 100 by 55 and multiply the quotient by 11 to get 20). 20/100 is 20%. hope this kinda helps.

7 0
3 years ago
2<br> m<br> Slope m<br> y-intercept b = ?<br> Equation<br> 2.
Rufina [12.5K]

Answer:

the lip is 2 hope it helps

5 0
3 years ago
Which expression is the correct one?
Zarrin [17]
According to the logarithmic property of base change, the correpta answer is option one or the first.
 The logarithmic property of base change says that
 loga (b) = logc (b) / logc (a)
 Therefore the same property applies to this problem and the correct expression for this question is:
 logb (x) / logb (a)
3 0
3 years ago
This is correct? I need help please :(
Leto [7]

Answer:

well, we only no that

2l + 2w is 80

(lengths and widths on all 4 sides

and that w * l is A

so the function should be w times what's left for l, but also expressed by something with w

2l + 2w = 80 | -2w

2l = 80 -2w | devide by 2

l = 80 - w

now we can substitute l in

A = w * l

so that we only need w's

A(w) = w * (80-w)

for any w it will give us the area, makes only sense for 0<w<80

8 0
3 years ago
Read 2 more answers
On a number line, 7.7 would be located. Choose all answers that make a
PolarNik [594]

Answer:

The Correct Answer are B and D

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Part a) Write the equation of the circle by completing the square.
    12·1 answer
  • Cindy measured and recorded the temperature of a liquid for an experiment. She used a poorly calibrated thermometer and noted th
    13·1 answer
  • Can you help? Having a hard time figuring this out. Thanks
    8·1 answer
  • How do I factor out the coefficient of the variable?
    11·1 answer
  • I need help asap, please !<br><br> 5+(−3)(6x−5) simplify this
    10·1 answer
  • Write a fraction that is equivalent to 2/3.
    10·1 answer
  • Gus is making 48 oz of spiced cider if he served an equal amount to 7 people will eat person get more than one cup of cider are
    8·1 answer
  • 3/4|-4-2(6)^2| answer please
    7·1 answer
  • A hiker travels 1.13 kilometers south, then travels 2.25 kilometers east. What’s the hiker’s displacement for the trip?
    10·1 answer
  • QUICK PLEASE ANSWER
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!