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
dsp73
3 years ago
7

X + y = 4 3x + 4y= 14

Mathematics
2 answers:
Vaselesa [24]3 years ago
7 0
Y = 4 - x
3x + 4(4-x) = 14
3x + 16 -4x = 14
-x = -2
x = 2
y = 2
kupik [55]3 years ago
5 0

Answer:

x = 2

y = 2

Step-by-step explanation:

x + y = 4  \:  \:   \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \:  \:  \:  \:  \:  \: ...1\\ 3x + 4y= 14  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: ...2\\  \\

from equation 1 we get

x = 4 - y

put x = 4 - y in equation 2

3(4 - y) + 4y= 14 \\ 12 - 3y + 4y = 14 \\ y = 14 - 12 \\ y = 2

again, put y = 2 in equation 1

x + 2 = 4 \\ x = 4 - 2 \\ x = 2

thus, x = 2 and y = 2

You might be interested in
Help plz no wrong answers plz help me ASAP thanks!
wariber [46]

Answer:

480

Step-by-step explanation:

The probability she will roll 2 odd numbers is 12/50  (the number of odd rolls over the total).  This simplifies to 6/25

Multiply the probability times the total number of rolls to get a good estimate of the number of rolls that till be odd odd

6/25 * 2000 =480

5 0
3 years ago
What is the answer to 4x+y=10
Alina [70]

Answer:

y = -4x + 10

Step-by-step explanation:

I am going to assume you are trying to write the equation of a line.

4x + y = 10

4x - 4x + y = 10 - 4x

y = -4x + 10

7 0
3 years ago
At a pie eating contest Jonny, Jonny are 8 pies in 5 minutes. How much time did he spend on each pie?
Klio2033 [76]
Johnny ate 8 pies in 5 minutes

He must have ate 1 pie in   (5/8) minutes

(5/8) minutes =  5/8 * 60 =  75/2  = 37.5 seconds

On each pie he spent 37.5 seconds.      
7 0
3 years ago
Read 2 more answers
Express 0.000216 in scientific notation
damaskus [11]
2.16 x 10 to the power of -4
3 0
3 years ago
A production manager tests 10 batteries and finds that their mean lifetime is 468 hours. She then designs a sales package for th
Usimov [2.4K]

iits probalty like based analyse

6 0
3 years ago
Read 2 more answers
Other questions:
  • Factor the expression. 35g^2 – 2gh – 24h^2
    13·1 answer
  • Suppose a right circular cone has a fixed height 3.6 inches. Use differentials to estimate the change in the volume of the cone
    15·1 answer
  • Angle in semi circle is 90<br>​
    11·1 answer
  • What is the slope of a line that contains the points (-2,2) and (3,4)
    9·2 answers
  • The difference between 3 1/2 and 1 4/5<br><br> a 2 4/5<br> b 2 7/10<br> c 1 4/5<br> d 1 7/10
    5·2 answers
  • Identify which of these quadrilateral's are parallelograms.
    13·1 answer
  • A recipe for cupcakes calls for 4 4/9 cups of sugar. brenda accidentally put in 5 1/6
    11·1 answer
  • PLEASE HELP!!!! 25 POINTS!!!
    12·1 answer
  • BYE EBYE BUE BYE BYE BYE BYE BYEWhat Bye.
    9·1 answer
  • Melissa spent $ 6,438.58 on Sunday and $ 2,849.65 on Monday. How much did she spend in all?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!