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
Anton [14]
4 years ago
15

What is the solution to the system of equations below?

Mathematics
1 answer:
AnnyKZ [126]4 years ago
8 0

Answer:

x=9, y=3

Step-by-step explanation:

-4x+6y=-18

y=-2x+21

-4x+6(-2x+21)=-18

-4x-12x+126=-18

144=16x

x=9

y=-2x+21

y=-18+21

y=3

You might be interested in
Tonya plans to join a fitness club. She researched the costs to join different clubs in her area and found that there is a linea
Ne4ueva [31]

Answer: 1 club - Club 2

Step-by-step explanation:

You can find the monthly rates by deducting the cost at 12 months from the cost at 24 months and dividing it by 12.

Club 1                                         Club 2                                 Club 3

= (432 - 216) / 12                       = (390 - 210) / 12                 = (504 - 252) / 12

= $18                                          = $15                                   = $21

Multiply these rates by 6 months and any club total cost at 6 month that differs from your answer has a joining fee.

Club 1;                                          Club 2;                                 Club 3

= 18 * 6                                         = 15 * 6                                = 21 * 6

= $108                                          = $90                                  = $126

<em>Same as total cost at              </em><u><em> Joining fee of $30</em></u><em>;      </em>         <em>No joining fee as </em>

<em>6 months so no joining            120 - 90 = $30                      this is the same </em>

<em>fee.                                                                                           as total cost at 6 </em>

<em>                                                                                                 months.</em>

5 0
3 years ago
Read 2 more answers
Dry dog food is sold for $9.79 for a 5 pound bag. Dylan bought the bag of dog food to feed his 4 puppies for the next month. If
kotegsom [21]

Answer:

5÷4=1,25

each puppy will get 1,25 pound of dry dog food.

6 0
4 years ago
Pls help in this aaaaaa
ivanzaharov [21]
The question is incorrect. X is not defined UNLESS the hexagon is a regular hexagon, which means that all sides are equal (given) AND all angles are equal (not given).

Error in question aside, and  ASSUMING the hexagon is regular, you can apply the principle that
1. the sum of exterior angles of ANY polygon is 360.
2. the sum of exterior angles and interior angles at EACH vertex is 180.
3. Multiply sum from (2) above by the number of vertices and subtract 360 gives the sum of the interior angles.
4. IF the polygon is regular (all angles equal), then each interior angle equals the result from (3) divided by n, the number of vertices.

Example for a regular heptagon (7 sides, 7 verfices).
1. Sum of exterior angles = 360
2. sum of interior and exterior angles at EACH vertex=180
3. multiply 180 by 7, subtract 360
180*7-360=900
4. since heptagon is regular, each interior angle equals 900/7=128.57 deg.


8 0
4 years ago
Which of the following describes the parabola with the equation y = −x2 − 3x + 6?
seropon [69]

Answer:

C) The axis of symmetry is x = −1.5 and the vertex is (−1.5, 8.25).

Step-by-step explanation:

The axis of symmetry is x = − b/2a

= -(-3) / 2(-1)

= 3/(-2)

= -1.5

the vertex => x = -1.5

y= -(-1.5)²-3(-1.5)+6 =

-2.25 +4.5+6= 8.25

4 0
3 years ago
A right triangle has legs 8 and 15. What is its perimeter?<br> 60, 46, 23 or 40?
SCORPION-xisa [38]

Answer:

46

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • If a sequence starts with 1 then 4 then 9 how many would the next sequence have
    15·1 answer
  • Roberto wants to display his 18 sports cards in an album . Some pages hold 2 cards and others hold 3 cards .
    8·1 answer
  • The perimeter of this figure is 42.5 cm. Find the area of this figure.
    7·1 answer
  • A population of insects increases at a rate of 1.5% per day. About how long will it take the population to double?
    15·2 answers
  • What is the value of c?<br> A.100 <br> B.50 <br> C.84<br> D.80
    10·2 answers
  • 1. Find equation (both the normal equation and the parametric equation) for the plane (in R3) so that (a) the plane contains the
    9·1 answer
  • What is the prime factorization of 1,575 (with work)
    6·2 answers
  • 15 point help asap marking brainlest!!!!!!!!!!!!!!
    9·2 answers
  • Question 7 (5 points)
    9·1 answer
  • Please help I'll give brainliest if answer is right ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!