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
zubka84 [21]
4 years ago
10

5x+4y=-14 3x+6y=6 solve the system below by the elimation​

Mathematics
1 answer:
lana66690 [7]4 years ago
8 0

Answer:

y = 4

x = -6

Step-by-step explanation:

multiply first equation by 3

3×(5x+4y)= -14 ➡ 15x + 12y = -42

multiply second equation by -5

-5×(3x+6y)= 6➡ -15x -30y = -30

now add both equations up

15x +12y -15x -30y = -42 -30 (15x will eliminate -15x)

-18y = -72

y = 4 use this to find value of x

3x + 6×4 = 6 ➡ ex = -18 ➡ x = -6

You might be interested in
Write the standard form of the line that passes through the point (-2, 4) and is parallel to x - 2y = 6. Type your answer in the
san4es73 [151]
Rewrite the equation: 2y=x-6, y=x/2-3, so slope is 1/2 which is also the slope of the parallel line.
It will have the equation y=x/2+a where a is found by plugging in the given point: 4=-1+a, so a=5.
Therefore y=x/2+5. (This can also be written 2y=x+10 or x-2y+10=0)
5 0
3 years ago
Read 2 more answers
Who knows what pi(3.14)x-99.29?
MrMuchimi

Answer:

Pi also appears in the calculations to determine the area of an ellipse and in finding the radius, surface area, and volume of a sphere.  

Step-by-step explanation:

The number represented by pi (π) is used in calculations whenever something round (or nearly so) is involved, such as for circles, spheres, cylinders, cones, and ellipses. Its value is necessary to compute many important quantities about these shapes, such as understanding the relationship between a circle’s radius and its circumference and area (circumference=2πr; area=πr²).

Our world contains many round and near-round objects; finding the exact value of pi helps us build, manufacture, and work with them more accurately.

6 0
3 years ago
Read 2 more answers
please respond with the format showed on the picture so use . after the letter and display the answer
Elis [28]

Answer:

a. subtract 7 from 10

Step-by-step explanation:

parenthesis goes before everything in this equation

7 0
3 years ago
Derek estimated the cost of his grocery bill to be $75, but it actually cost $110. Find the percent error rounded to the nearest
zhannawk [14.2K]

 The absolute change in price was $12−$8=$4.  Relative to the original price, it was 412, which is 0.3333 or 33.33%.

The answer was 1,150.0 but as a whole number its 1,150.

5 0
3 years ago
9 less than the sum of x and 5
saw5 [17]

Answer:

Given the statement:

9 less than the sum of x and 5

"Sum of x and 5" means x+5

"\text{less than}" means subtract

then;

the statement 9 less than the sum of x and 5 becomes;

⇒(x+5) - 9

⇒x+5-9 = x-4

Therefore, the expression for the given statement is (x+5) - 9



7 0
3 years ago
Other questions:
  • The graph of sinusidal function intersects its midline at (0,-3) and then has a maximum point at (2,-1.5). Write the formula of
    6·2 answers
  • Jesse sold cupcakes and cookies yesterday. Each cupcake sold for $1.50 and each cookie sold for $0.25. At the end of the day, Je
    12·1 answer
  • Please help!<br> Help me graph y = -1/3x + 5
    11·1 answer
  • The table shown gives values of the function y=g(x) for selected values of x.​
    11·1 answer
  • THIS IS DUE SOON SO CAN YOU PLEASE HELP?????
    5·1 answer
  • What is y=mx+b called?
    7·1 answer
  • Carolina goes to a paintball field that charges an entrance fee of \$18$18dollar sign, 18 and \$0.08$0.08dollar sign, 0, point,
    9·1 answer
  • Find x<br> 8x + 14<br> 9x + 2<br> A) 8<br> C) 11<br> B) 7<br> D) 12
    11·1 answer
  • Tom would like to stock groceries for his shop. The wholesaler where he buys his stock sells sugar in packets of 10 per carton,
    7·2 answers
  • Select the correct answer.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!