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
erik [133]
3 years ago
12

Estimate the solution to the system of equations.

Mathematics
1 answer:
Georgia [21]3 years ago
5 0

Answer:

<em>x = 4 / 3, y = 7 / 3</em>

Step-by-step explanation:

We are given the following system of equations;

{ 7x - y = 7,      ⇒        Let us multiply the first equation by 2,

x + 2y = 6 }

2 * ( 7x - y = 7 )  ⇒  14x - 2y = 14  ⇒  Now add the two equations

+ x + 2y = 6           + x  + 2y = 6                          

14x + x = 14 + 6 ⇒ Simplify

15x = 20,

<em>x = 4 / 3</em> ⇒ Now substitute this value of x into the first equation to solve for the value of y,

7 * ( 4 / 3 ) - y = 7 ⇒ Simplify,

28 / 3 - y = 7,

y = 7 / 3

<em>Solution; x = 4 / 3, y = 7 / 3</em>

You might be interested in
1 millimeter on the map represents 1 meter on the ground. What is the ratio
qwelly [4]
1mm:1m

since its just one to one, thats the ratio 
3 0
3 years ago
Determine whether the ordered pair (6,5) is a solution to the equation -2x + y = -7
natita [175]

Answer:

i really dont knok but my guess is yes

Step-by-step explanation:

8 0
2 years ago
Did I get this right or no I didn’t
Nezavi [6.7K]

Answer:

its correct bro ;) click next

7 0
3 years ago
You roll a 6-sided die with faces numbered 1 through 6, and toss a coin. What is the probability of rolling a 2 or getting heads
tino4ka555 [31]

P(2 or H) = P(2) + P(H) - P(2 and H)  

What is the probability of getting a 2 P(2)?  = 1/6

What is the probability of getting heads P(H)?  = 1/2

P(2 and H) is the product of those two events since the events are independent. = 1/6 * 1/2 = 1/12

P(2 or H) = P(2) + P(H) - P(2 and H)  

P(2 or H) = 1/6 + 1/2  - 1/12 = 7/12

5 0
3 years ago
What's 76×32÷5+(19×92)-15×2? Need help ASAP​
arsen [322]

Answer:

2204.4

Step-by-step explanation:

Okay so we want to always use order of operations: PEMDAS

Sop first we do what is in the parenthesis. 19*92 is 1748.

Now, going from left to right, we do multiplication and division. 76*32 is 2432. Then we divide that by 5 to get 486.4. And the last bit is 15*2 which is 30.

Your equation now is 486.4+1748-30.

The final answer is 2204.4

6 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone assist me on this​
    9·2 answers
  • Dj and 4 friends share 15 apples? How many apples does each friend get if they each receive the same number of apples?
    13·2 answers
  • 7^-5 times 7^3 equals what, I need help asap please
    7·1 answer
  • Prove the identity with steps. sin (x-y)/cos x sin y = tan x cot y -1​
    10·1 answer
  • 5 miles= km. how many km in 250 miles
    8·1 answer
  • Find the first five terms of the sequence..
    11·2 answers
  • 20% of 50 [ ] 40% of 70<br> a.&lt;<br>b.&gt;<br>c.=<br>plz anyone say this <br>10 points
    15·1 answer
  • The temperature in El Paso was 100 degrees on Monday and was 81 degrees on Tuesday. What is the percent of decrease in the tempe
    13·1 answer
  • Can anyone solve?<br><br><img src="https://tex.z-dn.net/?f=%20%5Csf%7B5x%20%2B%20x%20%3D%20%3F%7D" id="TexFormula1" title=" \sf{
    5·2 answers
  • 1. Solve each system of linear equations below, then check your work.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!