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
lisabon 2012 [21]
3 years ago
15

Use elimination to solve the system of equations:

Mathematics
1 answer:
zhenek [66]3 years ago
8 0
4
x
+
y
−
2
z
=
0
4
x
+
y
-
2
z
=
0
,
2
x
−
3
y
+
3
z
=
9
2
x
-
3
y
+
3
z
=
9
,
−
6
x
−
2
y
+
z
=
0
-
6
x
-
2
y
+
z
=
0
x
+
2
y
=
4
x
+
2
y
=
4
,
2
x
+
4
y
=
8
2
x
+
4
y
=
8
3
x
+
y
=
4
3
x
+
y
=
4
,
6
x
−
7
y
=
2
You might be interested in
It cost the Wilson children $55 to make lemonade. How many glasses must they sell at 75 cents each to make a profit? Write an eq
Brut [27]
To start break even they need to sell 100 but if they want to make profit they need to sell 101 because you can use the equation y = .75x - 55
7 0
3 years ago
Find the 14th term of the arithmetic sequence - 4x - 1, - 9x - 6 , -14x-11
Yanka [14]

Answer:

-69x-66

Step-by-step explanation:

1) given: a₁=-4x-1; a₂=-9x-6; a₃=-14x-11. Find: a₁₄-?

2) a₁₄=a₁+13d, where d - the difference between neighbor-terms;

3) d=a₂-a₁; ⇔ d= -9x-6+4x+1= -5x-5;

4) a₁₄= -4x-1+13*(-5x-5)= -69x-66.

3 0
3 years ago
How can I solve (b)?
dsp73
90/3 parts of silver = 30 times multiplied by
tin = 12 × 30 = 360g
lead = 8 × 30 = 240g

12.5 / 23 = 0.5434 parts per metal

tin = 12 × 0.5434 = 6.5kg
lead = 8 × 0.5434 = 4.5kg
silver = 3 × 0.5434 = 1.5kg
5 0
3 years ago
Price $24.99<br> tax rate 5.5<br> calculate the sale tax
grandymaker [24]
Convert the percent to a decimal (0.055) Now multiply by the price

24.99 • 0.055 = 1.37
5 0
2 years ago
HELP ASAP HELP ASAP HELP ASAP HELP ASAP
adell [148]
It’s the second, the penultimate and the last one :)

3(2 + x)
x + 2x + 2 + 4
x + x + x + 1 + 1 + 1 + 1 + 1 + 1
5 0
2 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP! Given: AG and BH , transversal CF ∠ADE and _______ are corresponding
    8·2 answers
  • How can I create a sine graph that has a period of 2π and an amplitude of 3?
    9·1 answer
  • Given a quadrilateral with vertices ????(0, 5), ????(6, 5), ????(4, 0), and H(−2, 0):
    9·1 answer
  • It is said that a student’s college GPA (grade point index) can be predicted by his/her HOCS (higher- order cognitive skills) su
    12·1 answer
  • How does 3^ + 3^+1 = 3^ + 3×3?? Please help me!!
    12·1 answer
  • Vincent flipped three coins during a probability experiment. The outcomes of the first 40 trials are shown in the table.
    7·2 answers
  • Someone please help I don't know how I got #7 or how to solve it.
    10·1 answer
  • Question 3: Add 9 to 5 times n to get 3 is reprented as​
    6·2 answers
  • Please need help thank
    15·1 answer
  • A store is having a big sale. Everything is 30% off. but for one day only, an extra 40% will be taken off of the discounted pric
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!