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
Leya [2.2K]
3 years ago
10

-6x+3y=-39 -6x-3y=-21 solve the system of equations

Mathematics
2 answers:
zimovet [89]3 years ago
5 0
The answer is the one on top
solmaris [256]3 years ago
4 0

Answer:

x=5,y=-3

Step-by-step explanation:

\left \{ {{-6x+3y=-39} \atop {-6x-3y=-21}} \right. \\-12x=-60\\12x=60\\x=\frac{60}{12} \\x=5

-6(5)+3y=-39\\-30+3y=-39\\3y=-39+30\\3y=-9\\y=-\frac{9}{3} \\y=-3

You might be interested in
Find two different unit rates to represent this problem . Show your work
QveST [7]
Which problem ????????
7 0
3 years ago
PLEASE HELP ASAP GEOMETRY 20 PTS REAL ANSWERS ONLY
kodGreya [7K]

Answer:

Step-by-step explanation:

Use the Law of Cosines to find the measure of angle A from the lengths of the sides.

A = arccos[(b²+c²-a²)/(2bc)] ≅ 29.9°

B = arccos[(a²+c²-b²)/(2ac)] ≅ 54.8°

C = 180 - A - B = 95.3°

7 0
2 years ago
Jaime makes the following claim.
Sphinxa [80]

Jaime is incorrect, the angle does not depend on the radius of the circles.

<h3>Is Jaime correct?</h3>

Remember that an angle that defines an arc on a circle, does not depend on the radius of the circle.

So, if we have an angle with a measure of π/3 radians in a circle with a radius of 3 inches and an angle with a measure of π/3 radians in a circle with a radius of 6 inches, these two angles are exactly the same thing.

The radius of the circle only has an impact on the length of the arc defined by the angle.

So Jaime is clearly incorrect.

If you want to learn more about angles:

brainly.com/question/17972372

#SPJ1

7 0
2 years ago
1. What is the marginal distribution of individuals who are underweight?
Katena32 [7]

Answer:

Step-by-step explanation:

You have to divide the TOTAL underweight which is 130, into the total of individuals which is 1000. 130/1000= 0.13 or 13.0%

Answer C.

I just took this quiz today

4 0
3 years ago
Read 2 more answers
Pine Bluff Middle School is having its annual Spring Fling dance, which will cost \$400$400dollar sign, 400. The student treasur
nikklg [1K]

The <em><u>correct answers</u></em> are:

The inequality is 75+4t ≥ 400, and they must sell at least 82 tickets.

Explanation:

t is the number of tickets sold. They start out with $75, so that is where our inequality begins. Each ticket is $4; this gives us the expression 4t. Together with the $75 carry over, we have 75+4t.

They must make at least $400 to pay for the dance. This means it must be more than or equal to 400; this gives us 75+4t ≥ 400.

To solve this, first subtract 75 from each side:

75+4t-75 ≥ 400-75

4t ≥ 325

Divide both sides by 4:

4t/4 ≥ 325/4

t ≥ 81.25

We cannot sell a portion of a ticket, so we round. While mathematically this number would "round down," if they only sell 81 tickets, they will not have enough money. Therefore we round up to 82.

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the surface area of this rectangular prism? Rectangular prism with length labeled 11 feet, height labeled 2 feet, and wi
    8·1 answer
  • If we multiply our sample size by four, the standard error of the sample mean will be cut in half. true
    6·1 answer
  • Which two rational numbers does square root of 14 lie between
    8·1 answer
  • I need help with this please :(
    6·1 answer
  • The function g(x) is defined as g(x) = −2x^2 + 3x.The value of g(−3) is
    11·1 answer
  • How do I do this? I’m not really sure. Anyways thank you!
    6·1 answer
  • What is the surface area of the pyramid
    5·1 answer
  • Help me please I beg of you please
    7·1 answer
  • Find and interpret the mean absolute deviation of the data.
    14·1 answer
  • Please answer the question down below also show the problem solving
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!