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
Marta_Voda [28]
2 years ago
13

Pls if anyone can solve NOW

Mathematics
1 answer:
Yuki888 [10]2 years ago
3 0

Answer:

Step-by-step explanation:

For the graphing, we can graph both equations, and where they intercept is the answer. Okay, so we can give x random inputs and get y as an output which is one pair of coordinates. I usually like using 0 as x.  y-3(0)=12.  y-0=12. y=12. So for our first equation, on of the coordinates is (0,12). Now we can insert another input for x! ( I chose 1.)  y-3(1)=12.  y-3=12.  y=15.   So our other pair of coordinates for the first equation is (1,15). We can do the same with the second equation. 2y+8(0)= -4. 2y+0= -4.  y=-2.  The first pair of coordinates for the second equation is (0,-2).  Another input we can put in is 1, again. 2y+8(1)=-4. 2y+8=-4.   2y= -12.  y= -6. So our second pair of coordinates for our second equation is (1,-6). We can graph this with a graphing calculator, or mark these points and draw a straight line through them. When we draw a line through them, the part where the two lines intersect is the answer.

When we do substitution, we need to solve for x or y in the bottom equation. I want to solve for x. ( NOTE: IF YOU SOLVE FOR y, YOU STILL GET THE SAME ANSWER) x=-56-3y. Then we replace the x on the top equation with 56-3y. And we get: 2(56-3y)-y=0. We can use the distributive property. The answer I have is 112-6y-y=0.  -6y-y is -7y.  112-7y=0.    We can add 7y to both sides so they seperate the variables and the numbers. 112=7y.  Lastly, divide by 7. For y, we get 16. To get x, we insert y, AKA 16 into x+3y= -56. x+3(16)=-56.  x+48= -56. Our last step to get x is to subtract 48 from both sides leaving us with: x= -100. Our final answer is y= 16 and x= -100.

You might be interested in
In a survey of music preferences 81 out of 450 students said that they preferred country music what percent of the students pref
Kazeer [188]
To write 81/450 as a percent have to remember that 1 equal 100% and that what you need to do is just to multiply the number by 100 and add at the end symbol % .
<span>
81/450 * 100 = 0.18 * 100 = 18% </span>
81/450 as a percent<span> equals </span><span>18%</span>
6 0
2 years ago
Mark wants to be the best football on his team. So he hits the weight room. He started lifting at 135lbs for his bench and every
balu736 [363]

Answer:

One week and around two days.

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
What is the effect on the graph of the function f(x) = 2x when f(x) is replaced with f(x − 3 5 )? A) translate vertically 3 5 un
Arte-miy333 [17]

Answer:

D.

Step-by-step explanation:

Translates horizontally 3.5 units right.

3 0
2 years ago
1.7 degrees Fahrenheit drops every thousand feet. The temperature on the ground is 63.7 Fahrenheit. What will the temperature be
Oksanka [162]

Answer:

The answer to your question is  Final temperature = 60.3°F      

Step-by-step explanation:

I include the process in the attachment

8 0
3 years ago
4 Gears A and B turn together. Gear A turns 20 times when
aleksandr82 [10.1K]

Answer:

  • 90 turns

Step-by-step explanation:

<u>Ratio of turns</u>

  • A/B = 20/30 = 2/3

<u>If A = 60 then the ratio is</u>

  • 60/B = 2/3 ⇒ B = 60*3/2 = 90
5 0
2 years ago
Other questions:
  • What is 3/4 of 1/3 of a mile ???
    11·2 answers
  • The Centers for Disease Control and Prevention (CDC) report that gastroenteritis, or stomach flu, is the most frequently reporte
    7·1 answer
  • I need help i will give brainlyest to who ever just tells me the answers with a small explanations ​
    10·2 answers
  • -6•f(3)-6•g(-1)= ???
    11·2 answers
  • How to subtract fractions
    6·1 answer
  • Simplify 25x4 dived by {12 - 8} please explain
    5·1 answer
  • Charles sells computer hardware for a computer manufacturer. He is paid 4% for
    14·1 answer
  • Please help!! Will appreciate. If you don’t know/ unsure don’t answer please
    5·2 answers
  • Use the Distributive Property to determine which of the following statements is equivalent to 5(6 – 2).
    10·1 answer
  • Ill give Brainly ig just help
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!