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
Maurinko [17]
3 years ago
9

4a+3b+c=16 a-3b+2c=11 11a-2b+3c=45

Mathematics
1 answer:
quester [9]3 years ago
7 0

Answer:

c=-37/42 b=-71/42 a=9/14

Step-by-step explanation:

Find what c is equal to using terms of a and b

c=16-4a-3b

Do the same for a using terms of c and b

a=11+3b-2c

Plug in a terms into c equation

c=16-4(11+3b-2c)-3b=-28/3-5b

Plug in c term into a equation

a=11+3b-2(16-4a-3b)=21/9-b

Plug in both a and c equations into 11a-2b+3c=45

11(21/9-b)-2b+3(-28/3-5b)=45

distribute and simplify to get that b=-71/42

plug in b to your c equation

c=-28/3-5x-71/42=-7/42

plug in b to a equation

a=21/9-(-71/42)=9/14


You might be interested in
Please help me<br>no links or I WILL report you<br>thank you in advance​
mafiozo [28]

Answer:

the answer is 24 because if you 6 x 4 it's 24

also with 4x6 it's still 24

plz give me a brailnliess

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Write words to match the expression
Readme [11.4K]
Three plus the product of four times twelve
5 0
3 years ago
Read 2 more answers
Tony bought 14 pounds of rice for $6 how many dollars did he pay per pound of rice
juin [17]

Answer: 43 cents

Step-by-step explanation: divide 6.00 by 14 which gives you around .42857

then you round to the hundredths place which gives you .43

7 0
3 years ago
Read 2 more answers
What is the area of triangle ABC?
erica [24]

Answer:

what is the area of triangle ABC choices

35 square unit

4 0
3 years ago
In triangle △ABC, ∠ABC=90°, BH is an altitude. Find the missing lengths. AB=4 and BC=3, Find AH, CH and BH.
IRISSAK [1]

Answer:

  • AH = 3.2
  • CH = 1.8
  • BH = 2.4

Step-by-step explanation:  

It can be convenient to compute the length of the hypotenuse of this triangle (AC). The Pythagorean theorem tells you ...

   AC^2 = AB^2 + CB^2

   AC^2 = 4^2 + 3^2 = 16 + 9 = 25

   AC = √25 = 5  

The altitude divides ∆ABC into similar triangles ∆AHB and ∆BHC. The scale factor for ∆AHB is ...

  scale factor ∆ABC to ∆AHB = AB/AC = 4/5 = 0.8  

And the scale factor to ∆BHC is ...  

  scale factor ∆ABC to ∆BHC = BC/AC = 3/5 = 0.6  

Then the side AH is 0.8·AB = 0.8·4 = 3.2

And the side CH is 0.6·BC = 0.6·3 = 1.8  

These two side lengths should add to the length AC = 5, and they do.  

The remaining side BH can be found from either scale factor:    

  BH = AB·0.6 = BC·0.8 = 4·0.6 = 3·0.8 = 2.4

_____  

The sides of interest are ...  

  AH = 3.2

  CH = 1.8

  BH = 2.4

3 0
3 years ago
Other questions:
  • Does this set of ordered pairs represent a function? Why or why not ?
    8·2 answers
  • A theatre has the capacity to seat people across two levels, the Circle and
    9·1 answer
  • If 7x + 5 = -2, find the value of 8x
    13·1 answer
  • Forty-eight pens are packaged in 4 boxes. how many pens are packaged in 9 boxes
    15·1 answer
  • A film distribution manager calculates that 4% of the films released are flops. If the manager is correct, what is the probabili
    13·1 answer
  • 3 (x - 3) + x (r + 4)
    5·1 answer
  • What is the y-intercept of function f?
    5·2 answers
  • Three consecutive even integers add up to -6 what are they?
    8·1 answer
  • In math class alyssa’s test score is 90.125
    9·1 answer
  • Which statement is true about the end behavior of the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!