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
patriot [66]
3 years ago
13

PLEASE HELP !!!! SYSTEMS OF EQUATIONS

Mathematics
1 answer:
jekas [21]3 years ago
4 0

Answer:

Maddie got 810 votes

Step-by-step explanation:

We'll call Maddie's votes x, and her opponent's votes y.

x + y = 1485

x = y + 0.20y (because she got the same number of votes as her opponent, PLUS another 20% of that number. Divide 20% by 100 to get the decimal equivalent) This can also be written as x = 1.2y

So our system is

x + y = 1485   and

x = 1.2y

Substitute the second equation's value for x into the first equation:

1.2y + y = 1485 then solve for y

2.2y = 1485

divide both sides by 2.2

y = 675

substitute that in and solve for x

x + y =1485

x + 675 = 1485

subtract 675 from both sides

x = 810

Please let me know if you have questions on this answer. Hope it helps.

You might be interested in
Consider the quadratic equation x? = 4x - 5. How many solutions does the equation have? A The equation has one real solution. Th
anzhelika [568]

Answer:

{-1, 5} (two real solutions).

Step-by-step explanation:

On the left side we want x^2, not x?

We need to rewrite x? = 4x - 5 in standard form, that is, as a quadratic with x terms in decreasing powers of x:

x^2 - 4x + 5 = 0

This factors easily to (x - 5)(x + 1) = 0.

We let each factor equal zero (0) separately and solve for x:  

{-1, 5} (two real solutions).

4 0
3 years ago
What are the coordinates of point B in the diagram?
shusha [124]
Might be A, I don’t know.
6 0
3 years ago
A parabola is the set of all points that​...
Vlada [557]

Answer:

is equidistant from a focus point and a line

3 0
3 years ago
Read 2 more answers
What value of X makes the equation true?<br><br> 12x-15=16-3x
gogolik [260]
X= 2 1/15 or 31/15.
4 0
3 years ago
Please answer CORRECTLY for brainliest guarantee. If your answer is not correct or does not have a explanation I will report you
Scorpion4ik [409]

Answer:

c. 45.34ft

Step-by-step explanation:

When leg one of the triangle is 15ft and leg two is 17 ft you would take   17^2 + 15^2 and then you find the square root of that (514) to get the hypotenuse of the triangle. After that you multiply by two to account for the 2/2 sqaure foot per each unit

4 0
3 years ago
Other questions:
  • Chart :
    13·1 answer
  • A study of 420 comma 000 cell phone users found that 134 of them developed cancer of the brain or nervous system. Prior to this
    12·1 answer
  • 3x+y=9 3.2+y=9 6+y=9 what is the x
    8·1 answer
  • Writing What is the diameter of a circle with a circumference of 11.277 ft? Use pencil and paper.
    15·1 answer
  • 3x+8&gt;9 <br> x has to equal 1<br> (if you can please include the steps! i will give brainiest)
    9·1 answer
  • In ABC, angle C is a right angle. Which statement must be true
    11·1 answer
  • Cuide
    10·1 answer
  • Write an equation in the form y=mx+b for the line which passes through (1,-10) and (-7,-2)​
    15·1 answer
  • Leroy found a job listed in the classified ads that pays a yearly salary of $42,000. What is his monthly salary?
    14·1 answer
  • Teresa is going with her family to watch
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!