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
goldenfox [79]
3 years ago
10

Follow the directions to solve the system of equations by elimination.

Mathematics
2 answers:
Korolek [52]3 years ago
3 0
To solve a system of equation by elimination, the coefficients of the  same variable of both equations must be equal. In this case, let's choose y.
In order to make the coefficient of y of the second equation be equal to 7, we divide it by 2. Resulting to:
2x - 7y = -34

Next, add the two solutions so that the y term is eliminated. The result is:
10x = 5
Then solve for x
x = 1/2

Substitute x to either of the solution to solve for y. The result is:
y = 5
zheka24 [161]3 years ago
3 0

Answer:

The solution to the system of equations is 1/2 , 5

Step-by-step explanation:

Took test on ed :)

You might be interested in
Solve the inequality r 4-2(r-14)>0
klasskru [66]
R^4-2(r-14)>0
r^4-2r+28>0
r^4-2r+28=0
There is no real solution but there is all real numbers
:)
4 0
3 years ago
maria threw a party for the promotion she received the party cost $20 for two people if she invited 20 guest what would be the c
zhenek [66]

The total cost would  be:

$20 = two people- 2*20=40$

20 = guest

20*20=

400 would be the cost

6 0
3 years ago
Five men can install 200 yards of pipeline in an eight hour day three men are added to the job assuming the individuals rates re
Novay_Z [31]

Answer:

7 days

Step-by-step explanation:

Five men do 200 yards in one day

One man does 200/5 = 40 yards in 1 day.

=============

Now you want to know something about 8 men

8 men can do 40 * 8 = 320 yards in 1 day

=============

2240 yards / 320 yards = 7 days

3 0
3 years ago
What two numbers multiply to 11 and add to -16
VladimirAG [237]
They're irrational numbers, so they can't be exactly written down.
Rounded to the nearest thousandth, they are

     - 15.280
and
       - 0.720 .
5 0
3 years ago
Read 2 more answers
One end of a ramp is raised to the back of a truck 5 feet above the ground. 1 point
sveta [45]

Answer:

38.7°

Step-by-step explanation:

You are basically looking at a triangle with a 90° angle (check picture).

Since we are looking for the ramp's angle and are given the length of the opposite and the hypothenuse, we have to solve the following equation:

sin (\alpha) = opposite / hypothenuse= 5 ft/8ft

which is equivalent to

\alpha = sin^{-1}(5/8)\approx 38.7\deg

6 0
3 years ago
Other questions:
  • A computer costs £927 plus VAT, where VAT is charged 20% find the total cost of the computer
    5·1 answer
  • Can anyone tell me what the answer is? PLEASEEE!!
    7·1 answer
  • Lanie works part-time at Sweet Treats Catering. She earns $13.25 per hour and work 25 hours a
    8·1 answer
  • A store sells T-shirts for $10 each and jeans for $20 a pair. Anna spends $150 on T-shirts and jeans. She buys x T-shirts and y
    6·1 answer
  • I will mark brainliest
    10·2 answers
  • 3x+4/5=7-2x what does x=
    15·1 answer
  • 2x + 3y = 17<br> 5x + 6y = 32<br><br> Usibg method if elimination
    5·1 answer
  • Is there a solution for <br> (2x-4) ≥ -10
    11·1 answer
  • While sightseeing in Rome, Lance stopped to see the Colosseum. He learned that the height of the outer wall of the Colosseum mea
    15·1 answer
  • your paper airplane is launched from 25ft. it descends at a rate of 5ft per second. write an equation that represents the height
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!