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
ELEN [110]
3 years ago
15

10x +2y = 64

Mathematics
1 answer:
Musya8 [376]3 years ago
5 0

Answer:

<h2>x = 4, y = 12 → (4, 12)</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}10x+2y=64&\text{multiply both sides by 2}\\3x-4y=-36\end{array}\right\\\underline{+\left\{\begin{array}{ccc}20x+4y=128\\3x-4y=-36\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad23x=92\qquad\text{divide both sides by 2}\\.\qquad x=4\\\\\text{put the value of x to the first equation:}\\\\10(4)+2y=64\\40+2y=64\qquad\text{subtract 40 from both sides}\\2y=24\qquad\text{divide both sides by 2}\\y=12

You might be interested in
HELP FAST giving 5 stars
Murrr4er [49]

Answer:

The red is 1/3 and yellow is 1/4

Step-by-step explanation:

there are 3 colors and 1 of them is red so 1/3 same goes to the yellow 4 colors and  is 1 yellow so 1/4

3 0
3 years ago
Tsits Cat
8090 [49]

Answer:

the trinagne

Step-by-step explanation:

8 0
3 years ago
The volume of geyser 2 is 768000cm³. if 1000 cm³= 1 litre convert the volume of geyser 2 to liters​
polet [3.4K]
<h2>Volume</h2>

The volume of geyser 2 is 768000cm³. if 1000 cm³= 1 litre convert the volume of geyser 2 to liters

- To convert cm to liters divide the volume by 1000

  • \tt {768000cm^3}  \div 1000 =  \green{768  \: litres}

Therefore, 768000 cubic centimeters in liters is 768.

<h3>#CarryOnLearning</h3>
4 0
2 years ago
Please help look at the picture
k0ka [10]

Answer:

y = - 5x - 1

Step-by-step explanation:

The first thing to do (always) is pay attention to x =0. That at least gives you a partial answer. y = y' - 1. when you put 0 in for whatever y' is you get 0. What about the other numbers? How did they come about.

We have another clue. Whenever you put in a positive number for x, you get a negative answer for y. That's interesting. So y' has a minus sign associated with it.

y = -ax - 1    Make a>0 so there is only 1 minus sign. x cannot have an even power, because an even power would make everything positive except the -1.  

So we'll start with y= - ax - 1 We'll also make the assumption that a = 1

y = - x - 1 That won't work. a >1 otherwise x = 2 won't give - 11

y = -ax - 1

let x = 2

let y = - 11 Solve for a

y = - ax - 1

- 11 = -a*-2 - 1       add   1  to both sides

-11 + 1 = - a(-2) - 1 + 1

- 10 = -2a             Divide by - 2

- 10/-2 = -2a/-2

a = 5

Answer: y = - 5x - 1

8 0
3 years ago
Angles in a triangle: I did common like terms: 2x+190=180. I solved it and got -10. I checked my answer by changing x to -10. I
netineya [11]
That's correct. Now you gotta plug in -5 in for x and get both angles.
7 0
3 years ago
Read 2 more answers
Other questions:
  • I’m confused on this one
    5·2 answers
  • Q3. A + B = 0 and AB = - 36.<br> What is the value of A-B?
    13·2 answers
  • Which equation is NOT an identity?
    8·1 answer
  • Help me and I’ll show u my dump truck
    10·1 answer
  • Mei is retiling her bathroom walls. Each tile can be described as a polygon with vertices at
    12·1 answer
  • If u can do this your so brainy !!!!
    15·2 answers
  • Find the common ratio of the geometric sequence 11, -55, 275,...
    10·2 answers
  • Judy can throw a baseball 240 feet. This is 80% as far as her older brother can throw the ball. How far can her older brother th
    7·1 answer
  • SI-
    15·1 answer
  • The terminal side of an angle<br><br> intersects the unit circle at point
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!