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
gtnhenbr [62]
3 years ago
12

18x-16y=-312 78x-16y=408

Mathematics
1 answer:
lilavasa [31]3 years ago
5 0
Elimination
multiply first equation by -1 and add to 2nd


-18x+16y=312
<u>78x-16y=408 +</u>
60x+0y=720

60x=720
divide both sides by 60
x=12

sub back

18x-16y=-312
18(12)-16y=-312
216-16y=-312
-16y=-528
divide both sides by -16
y=33


x=12
y=33
(x,y)
(12,33)
You might be interested in
PLS HELP 100 POINTS
DaniilM [7]

39

beacause this is the answer when you aolve it

4 0
3 years ago
Please find the domain and range!
SpyIntel [72]

Answer:

Domain: {-2, -3, 6, 8, 10}

Range: {-5, 1, 7, 9}

Step-by-step explanation:

Given:

{(6, -5), (-2, 9), (-3, 1), (10, 7), (8, 9)}

✔️Domain:

This includes all the set of the x-values that are in the relation. This includes, 6, -2, -3, 10, and 8.

Thus, the domain can be represented as:

{-2, -3, 6, 8, 10}

✔️Range:

This includes all corresponding y-values in the relation. They are, -5, 1, 7, and 9.

Range can be represented as:

{-5, 1, 7, 9}

3 0
3 years ago
Find the value of x.
Gnoma [55]

Answer:

x = 10

Step-by-step explanation:

Since the triangle is right use the sine ratio to find x

sin30° = \frac{opposite}{hypotenuse} = \frac{5}{x}

cross- multiply

x × sin30° = 5 ( sin30° = 0.5 )

0.5x = 5 ( divide both sides by 0.5 )

x = 10

5 0
3 years ago
Read 2 more answers
How can you find the height of 430 basketball players without adding up all the height
Ahat [919]
The answer is by using the measuring tape
3 0
3 years ago
IM BEGGING PLEASE HELP One angle of the triangle is 30% larger than the other and 36 ° smaller than the third. Find the angles o
Zigmanuir [339]

9514 1404 393

Answer:

  52°, 40°, 88°

Step-by-step explanation:

Let x represent "one angle". This is 30% larger than "the other", so we have ...

  x = "the other" × (1 +30%)

  x/1.30 = "the other"

If x is 36° smaller than the third, then the third is x+36.

__

The sum of the angles is 180°.

  x + x/1.3 + (x +36) = 180

  x(2 +1/1.3) = 144

  x = 144/(2 +1/1.3) = 52

  x/1.3 = 52/1.3 = 40

  x +36 = 88

The angles of the triangle are 52°, 40°, and 88°.

7 0
2 years ago
Other questions:
  • A number is multiplied by 4, and then 6 is added to the product. The result is 18. What is the number? I already know that the a
    14·1 answer
  • -PLEASE HELP ASAP-
    9·1 answer
  • 3(x - 1) - 8 = 4(1+x) + 5​
    5·2 answers
  • Convert 147% to a fraction in simplest form​
    12·1 answer
  • Sylvia and Patrick plotted the information they gathered on the weight of cars and the mileage they get. Then they each drew a l
    9·2 answers
  • Nadia thinks of a number.
    10·1 answer
  • What is the solution of the following systems of equations? y = 1/2x <br> y = -x -3
    14·1 answer
  • Jacob has 27.5 pounds of coffee beans to grandpa's got too much coffee is Jacob is able to fill container with 2.5 lb of coffee
    9·2 answers
  • Equation:-<br><img src="https://tex.z-dn.net/?f=x%20%2B%205%20%3D%205%20-%200%20-%206%20%2B%202" id="TexFormula1" title="x + 5 =
    15·2 answers
  • The data set represents the number of minutes dan spent on his homework each night. 30, 35, 35, 45, 46, 46, 52, 55, 57 which box
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!