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
masha68 [24]
3 years ago
8

2x+3y = -33 3x+6y=-57 using elimination

Mathematics
1 answer:
ella [17]3 years ago
4 0

\left\{\begin{array}{ccc}2x+3y = -33&\text{multiply both sides by 3}\\3x+6y=-57 &\text{multiply both sides by (-2)}\end{array}\right\\\\\underline{\left\{\begin{array}{ccc}6x+9y=-99\\-6x-12y=114 \end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad-3y=15\qquad\text{divide both sides by (-3)}\\.\qquad y=-5\\\\\\\text{Put the value of y to the first equation}\\\\2x+3(-5)=-33\\2x-15=-33\qquad\text{add 15 to both sides}\\2x=-18\qquad\text{divide both sides by 2}\\x=-9

Answer:\ x=-9\ and\ y=-5\to(-9,\ -5)

You might be interested in
I need help with this
Georgia [21]

Answer:

The volume of hemi-sphere is calculated by:

V = (4/6) x pi x radius^3 = (4/6) x pi x 7^3 = 718.38

Hope this helps!

:)

4 0
3 years ago
HELPPPPPP PLEASEEEEEEEEEE
MA_775_DIABLO [31]
In synthetic division, you start by bringing down the first 1 in the box.  Multiply that by the 1 outside the box and get a 1.  Put that new 1 under the 2 inside the box and add to get 3.  Multiply the  outside the box by that 3 to get 3 and put that new 3 under the -3 in the box and add to get 0.  Multiply that 0 by the 1 outside the box to get 0.  Put that 0 under the 2 and add to get the remainder of 2.  Your answer is 2, C.
6 0
3 years ago
Latoya runs 12 miles in 75 minutes. how many miles does she run per minute?
Burka [1]

12 ÷ 75 = 0.16.

So she runs 0.16 miles per minute.

Hope it helps!

5 0
3 years ago
Harper has $15.00 to spend at the grocery store. She is going to buy bags of fruit that cost $4.75 each and one box of crackers
Grace [21]
Since harper has only %15 that is the most she can spend, therefore we would have 15> or = 4.75b+3.5c.  the best way to solve this would be to divide 15 by 4.75, then round down to the nearest whole number. if you do this, you get 3 bags of fruit.
5 0
2 years ago
Read 2 more answers
Multiply the polynomial (x-5)(x^2+4x-2)
madreJ [45]

Answer:

x^3-x^2-22x+10

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • The image shows a geometric representation of the function f(x) = x2 – 2x – 6 written in standard form.
    15·1 answer
  • 2. An event with a probability of 1 is<br> called<br> certain<br> likely.<br> impossible
    7·1 answer
  • Simplify (a^2)*(a^7)*(b^3)
    7·1 answer
  • *WILL MARK BRAINLIEST*
    11·2 answers
  • Does The TI-Nspire works just like the TI-84 ?
    12·1 answer
  • HELP ME PLEASE !
    13·1 answer
  • By the 3rd week of virtual school, Mr. Key's beard had grown 6
    13·1 answer
  • Combine Like Terms : v+v
    12·1 answer
  • The number of gift baskets Nikki can make varies directly with the amount of time she spends making the baskets. She can make 4
    13·1 answer
  • Find the surface area of the pyramid.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!