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
Readme [11.4K]
3 years ago
8

Solve this linear system 28x + 44y = 964.40 21x + 33y = 723.30

Mathematics
1 answer:
Sladkaya [172]3 years ago
3 0

28x + 44y = 964.40

21x + 33y = 723.30

Let's multiply the first equation by 4 and the second by -4

84x + 176y = 3857.6

-84x - 132y = -2893.2

Add the equations together.

0 + 44y = 964.4

Simplify

44y = 964.4

Divide both sides by 44

y = 964.4/44

Since we have the value of y, let's plug 964.4/44 into y for the first equation.

28x + 44(964.4/44) = 964.40

Simplify the left side

28x + 964.4 = 964.4

Subtract 964.4 from both sides

28x = 0

Divide both sides by 0

x = 0

In conclusion,

y = 964.4/44

x = 0

You might be interested in
P(x)=2x3-3x2+14x÷15 and why?​
labwork [276]

Answer:

I think you have not written the full question

6 0
3 years ago
What is the value of the expression 2 superscript 5?<br> 10<br> 25<br> 32<br> 64
Varvara68 [4.7K]
32, that’s just 2 to the fifth power so 2*2*2*2*2
3 0
2 years ago
Read 2 more answers
How do you factor the trinomial 3p^2-2p-5
asambeis [7]
Use slip and slide method
p^2-2p-15
(p-5)(p+3)

(p-5/3)(p+3/3)
(p-5/3)(p+1)
(3p-5)(p+1)

Final answer: (3p-5)(p+1)
7 0
3 years ago
The hypotenuse of a right triangle is 15 inches, and one of its legs is 11 inches. Find the length of the other leg.
nignag [31]

Answer:

10.2

Step-by-step explanation:

4 0
3 years ago
Solve for x<br> -6x+14&lt; -28 or 9x+15≤−12
Free_Kalibri [48]

- 3 \geqslant x > 6

Step-by-step explanation:

....

8 0
3 years ago
Other questions:
  • (x+6)(x+4)(x-3) expand and simplify
    9·2 answers
  • 4) 10(–7 + a) = -40<br> ??
    6·2 answers
  • Please help and tell me how to do so!
    11·1 answer
  • What is the size of angle x ? <br> And give a reason
    7·1 answer
  • The school store opened on the first day of school with 35 notebooks and 15 pencils. Within 2 days it sold all of those items. O
    10·2 answers
  • 4/4 plus 4/4 please help
    13·2 answers
  • There are 18 cupcakes. How many 3/4 size servings can you make?
    10·2 answers
  • Janelle subtracts -4 from a number. The result is -2. What is the number?0
    15·2 answers
  • How many two-digit numbers can be formed
    8·2 answers
  • Let n be equal to 156% of 70. Which of the following proportions is true?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!