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
pentagon [3]
3 years ago
15

-4.5x-2y=-12.5 3.25x-y=-0.75 solve by elimination

Mathematics
1 answer:
creativ13 [48]3 years ago
5 0
-4.5x-2y=-12.5 and 3.25x-y=-0.75
we first multiply the second equation by -2
(-2)*(3.25x-y=-0.75)=-6.5x+2y=-1.5
add the equation to eliminate the y
so yo get (-4.5x-6.5x)=(-12.5-1.5)
-11x=-11
x=1
now we plug in x into any equation to solve for y
-45x-2y=-12.5 and x=1
(-45*1)-2y=-12.5
-4.5-2y=-12.5
-2y=-12.5+4.5
-2y=-8
y=4
then your answer is x=1 and y=4
You might be interested in
A politician is interested in the proportion of voters in his district that think he is doing a good job. Define the following i
valina [46]
The sample is all voters in the district that think he’s doing a good job
3 0
3 years ago
What race is Worf?<br> A. Saiyan<br> B. Makrazin<br> C. Klingon<br> D. Martain
rosijanka [135]

Answer:

Step-by-step explanation:

c i watch the show

8 0
3 years ago
Find the LCM of 6 and 15.<br> A) 6 <br> B) 15 <br> C) 30 <br> D) 90
erastovalidia [21]

Answer:

30

Step-by-step explanation:

the answer is 30 because if you count by 6 it would go 6,12,18,24,30,36,42 and if you go by 15 it would be 15,30,45,60,75,90..... and the only number that you see twice is 30 so the answer would be 30. Hope this helped...

3 0
3 years ago
Read 2 more answers
Using a property of operations, what can you say about the sums of (-13.2) 8.1 and 13.2 (-8.1)
artcher [175]
No matter where the negative sign is, the product will always be negative, so is the number itself.

13.2(-8.1)=-106.92

twice of that would be -213.84.

first do the multiplying, then the adding(the adding of negative numbers, so it would be basically subtracting).
7 0
3 years ago
Factor completely: 2x3 + 6x2 + 10x + 30
qwelly [4]
The complete factor from:

2x3 + 6x2 + 10x + 30
2x(x+3) + 10(x+3)
(x+3)(2x+10)
2(x+5)(x+3)

hope this help
3 0
3 years ago
Read 2 more answers
Other questions:
  • An ornithologist who specializes in cockatoos in Australia decides to estimate the cockatoo population in a certain region. To d
    8·2 answers
  • We are interested in the dimensions of a certain rectangle. This rectangle has length 5 units more than the side of this square
    6·1 answer
  • What is the greatest perfect square in 650
    5·1 answer
  • When x hundred pairs of skates are produce by c(x) =0.1x2-0.3x+0.625 when c(x) is hundreds of dollars what is the cost and how m
    10·1 answer
  • What is the square root of -1?
    13·1 answer
  • Tell you what (since some of y’all wanna lurk), imma start speaking your language. I’ll give 61 points to whomever can help me o
    5·2 answers
  • Find the sum of the squares of the roots of 3x^2 + 4x + 12 = 0.
    13·2 answers
  • Write the standard form of the equation of the line that passes through (-2, -3) and (2,-5).
    13·1 answer
  • [tex]\sqrt{x} 196<br> can someone help me
    6·2 answers
  • 2(x+3) = 5x + 6 - 3x is it true or false
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!