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
andrey2020 [161]
3 years ago
8

How can you represent the system of inequalities with a matrix? 11x-12y=7 5x+12y=-7

Mathematics
1 answer:
Ahat [919]3 years ago
4 0

\left[\begin{array}{ccc}11&-12&7\\5&12&-7\end{array}\right]


You might be interested in
A cow gave 8 1 2 liters of milk in the morning, 3 5 liters less than this at the noon milking, and 6 3 10 liters in the evening.
Nitella [24]

Answer:

22\frac{7}{10}\ l  or 22.7\ l

Step-by-step explanation:

<u><em>The correct question is</em></u>

A cow gave 8 1\2 liters of milk in the morning, 3\5 liters less than this at the noon milking, and 6 3/10 liters in the evening. How many liters of milk did the cow give during the entire day?

we know that

The total liters of milk given by the cow during the entire day is equal to the amount in the morning plus the amount at the noon plus the amount in the evening.

Let

x -----> liters of milk given by the cow in the morning

y ----> liters of milk given by the cow at the noon

z -----> liters of milk given by the cow in the evening

T ----> total liters of milk given by the cow during the entire day

T=x+y+z

we have

x=8\frac{1}{2}\ l=\frac{8*2+1}{2}=\frac{17}{2}=\frac{85}{10}\ l

y=\frac{17}{2}-\frac{3}{5}=\frac{85-6}{10}=\frac{79}{10}\ l

z=6\frac{3}{10}\ l=\frac{6*10+3}{10}=\frac{63}{10}\ l

T=\frac{85}{10}+\frac{79}{10}+\frac{63}{10}

T=\frac{227}{10}\ l

T=22.7\ l

Convert to mixed number

22.7\ l=22+0.7=22+\frac{7}{10}=22\frac{7}{10}\ l

6 0
2 years ago
I am a number greater than 40,000 and less than 60,000. My ones digit and tens digit are the same. My ten-thousands digit is 1 l
jarptica [38.1K]
I am a number greater than 40,000 and less than 60,000:

40,000 < n < 60,000

This means that:

n = 10,000n₁ + 1,000n₂ + 100n₃ + 11n₄

And also:

4 ≤ n₁ < 6

0 ≤ n₂ ≤ 9

0 ≤ n₃ ≤ 9

0 ≤ n₄ ≤ 9

My ten thousands digit is 1 less than 3 times the sum of my ones digit and tens digit:

n₁ = 3*2n₄ - 1

n₁ = 6n₄ - 1

This means that:

n = 10,000*(6n₄-1) + 1,000n₂ + 100n₃ + 11n₄

n = 60,000n₄ - 10,000 + 1,000n₂ + 100n₃ + 11n₄

n = 60,011n₄ - 10,000 + 1,000n₂ + 100n₃

<span>My thousands digit is half my hundreds digit, and the sum of those two digits is 9:

n</span>₂ = 1/2 * n₃
<span>
n</span>₂ + n₃ = 9
<span>
Therefore:

n</span>₂ = 9 - n₃
<span>
Therefore:

9 - n</span>₃ = 1/2 * n₃
<span>
9 = 1/2 * n</span>₃ + n₃
<span>
9 = 1.5 * n</span>₃
<span>
Therefore:

n</span>₃ = 6
<span>
If n</span>₃=6, n₂=3.
<span>
This means that:

</span>n = 60,011n₄ - 10,000 + 1,000*3 + 100*6

n = 60,011n₄ - 10,000 + 3,000 + 600

n = 60,011n₄ - 6,400

Therefore:

0<n₄<2, so n₄=1.

If n₄=1:

n = 60,011 - 6,400

n = 53,611

Answer:

53,611
3 0
3 years ago
Jonah has a recipe that uses 1 1/2 cups of brown sugar and 2 1/3 cups of flour. Jonah wants to use all of his flour to make as m
S_A_V [24]

Answer:

4 1/2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Help me plz bruh i need this doneeeee
NARA [144]
Answer 2. You just have to find wants similar and put it out front and then leave wants left in parentheses
5 0
3 years ago
Read 2 more answers
How many more people voted for the most popular color than for the least popular color
PilotLPTM [1.2K]

Answer:

24

Step-by-step explanation:

red is most popular with 33 votes. silver is least popular with 9 votes.

33 - 9

24

7 0
2 years ago
Other questions:
  • Use the exponential growth model, A = A0 e^kt to show that the time is takes a population to double (to frow from A0 to 2 A0) is
    15·1 answer
  • What is the volume of the rectangular prism?<br> 1/3ft
    9·1 answer
  • If f(x) = c^2-2x and g(x) = 6x+4 , for which value of x
    13·1 answer
  • Surface area of rectangular prism length6 height2 width4
    13·2 answers
  • Divide $28 amongst three people so that their shares are in the ratio 5 : 8 : 1
    7·1 answer
  • Write in the measure, in degrees, for each angle marked with a question mark.​
    5·1 answer
  • Question 17 (1 point)
    9·1 answer
  • R.<br> Y.<br> 12 cm<br> 20 cm<br> 13 cm<br><br> -<br> Find volume
    10·2 answers
  • Three friends are playing a card game. to start each player draws four cards. the player with the largest sum goes first. which
    6·1 answer
  • How do i figure out (4x -14)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!