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
alexandr402 [8]
3 years ago
14

4. Which of these are solutions to the following system of equations?

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
5 0

Answer:

Step-by-step explanation:

We have to check each one answer in the following system:

x - 2y = 7

13x + 7y = 8

a. (7,0)

7 - 2.0 = 7 (it's true)

13.7 + 7. 0 = 8 (it's false)

It isn't a correct answer.

b. (5, -1)

5 - 2.(-1) = 7 (correct)

13.5 + 7 (-1) = 8 (wrong)

It isn't a correct answer.

c. (-2,2)

-2 - 2.2 = 7 (wrong)

d. (3, -2)

3 - 2. (-2) = 7 (correct)

13.(3) + 7.(-2) = 8 (wrong)

So, none of them is answer.

You might be interested in
Identify the property demonstrated. (7x3)^4 = 7^4 x 3^4
Vikki [24]
( 7 x 4 ) ^4 = 7^4  x  3^4
The rule is:
( a * b )^n = a^n * b^n
Answer:
D ) Power of a Product Property
6 0
4 years ago
Read 2 more answers
Select the correct answer. Twenty students in Class A and 20 students in Class B were asked how many hours they took to prepare
Lunna [17]

Answer:

B: The mean study time of students in Class B is less than students in Class A.

Step-by-step explanation:

To find out why answer B is the right answer, I will give you facts from each option.

Option A is false. <em>The mean study time in Class A is 4.8. Meanwhile in Class B it is 4. For Class A, sum up the 20 study times which is 96 and divide them by 20, you will get 4.8 hours of mean study time. For Class B, the sum of the 20 study times is 80, which divided by 20 will be 4. </em>

Option B is True. <em>See previous explanation. </em>

Option C is False. <em>The median study time in Class B is 4. The median study time in Class A is 4.8, </em>

Option D is False. <em>The range in Class A is from 2 to 8. The range in Class B is from 2 to 7. </em>

Option E is False: <em>The mean and median study time of these classes is different.</em>

6 0
3 years ago
Read 2 more answers
PLEASE ANSWER THIS AS SOON AS POSSIBLE
monitta

Answer:

-3

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The Parent Association (PA) is ordering caramel apples.
harina [27]

Answer:

1000 caramel apples

Step-by-step explanation:

20 caramel apples in 1 box and 50 boxes so it will be 20×50

7 0
3 years ago
Read 2 more answers
3 1183 long division​
Triss [41]
= 394 R 1

= 394 1/3

1183 divided by 3 equals
394 with a remainder of 1
3 0
3 years ago
Other questions:
  • Solve -3/7h=6<br> Can anyone help me with this??
    14·1 answer
  • P &amp; Q are midpoint of side CA &amp; CB respectively of ΔABC right angled at C. Prove that 4( AQ² + BP² ) = 5AB²
    15·1 answer
  • Angle R and Angle T are complementary. If m of Angle R = 3x and m of Angle T = 2x, what is the value of x?
    9·2 answers
  • Find a polynomial equation that has double zeros at x = -3, and x = 4.
    13·1 answer
  • Natasha bought a new CD player on Friday. It cost $72. On Monday, she found that the CD player was on sale. The sale price is $5
    12·1 answer
  • Solve for the variable<br> (x + 18)°<br> 48°
    6·1 answer
  • Help ASAP THANK YOU
    13·1 answer
  • Which of the numbers below is greater than 313.587?
    5·1 answer
  • The Sugar Sweet Company will choose from two companies to transport its sugar to market. The first company charges $3604 to rent
    13·2 answers
  • Here’s the <br> question to my last <br> post :) <br><br> anyways
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!