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
Delvig [45]
3 years ago
15

Use the multiplication method to solve the following systems of equations. 1. 4q – 2r = 36 and 6q + r = 10

Mathematics
1 answer:
sasho [114]3 years ago
7 0

Answer: r = -11, q =3.5

Step-by-step explanation:

4q – 2r = 36  ....... eqn. 1

6q + r = 10 ..............eqn 2.

from eqn. 2 make r subject formula i.e.

r = 10- 6q   (substitute for 'r' in eqn. 1)

we have;

4q - 2(10-6q) = 36 (open bracket)

4q -20 + 12q = 36 (collect like terms)

4q+12q = 36+20

16q = 56

q = 56/16

q = 3.5

substitute for q in eqn. 2.......

6(3.5) + r = 10

21 + r = 10

r = 10-21

r = -11, q =3.5

Please give me brainliest...thanks

You might be interested in
Louis brings 79 pencils to school. After he gives each of his 15 classmates an equal number of pencils, he will give any leftove
slavikrds [6]

Answer:

a. 4\ pencils

b. His teacher will receive more pencils (See explanation).

Step-by-step explanation:

a. The total number of pencils Louis brings to school is:

total\ pencils=79

Then, in order to calculate the number of pencils Louis’s teacher will receive after he gives each of his 15 classmates an equal number of pencils, you need to solve the division show in the picture attached.

Notice that the remainder obtained is: 4.

<em>This means that Louis’s teacher will receive 4 pencils.</em>

b. If Louis decides instead to take an equal share of the pencils along with his classmates, his teacher will receive more pencils; because the amount of pencils each classmate will receive will be less. This means that the number of pencils leftover will increase, leaving more pencils for his teacher.

4 0
3 years ago
Read 2 more answers
Which statement would produce a tautology?<br> p q<br> p q<br> p p<br> q p
Vladimir [108]
Hello There!

I'm assuming it is p p.

Hope This Helps You!
Good Luck :) 

- Hannah ❤
3 0
3 years ago
Read 2 more answers
the linear equation y=2x represents the cost y of x pounds of pears. which order pair lies on the graph of the equation? A. (2,4
Vladimir [108]

Answer:

  A.  (2, 4)

Step-by-step explanation:

The ordered pairs represent (x, y). Since you have y =2x, this is the same as ...

  (x, 2x)

That is, the second number in the pair needs to be twice the first number in the pair. Since you know your times tables, you know that this is not the case for (1, 0), (10, 5) or (4, 12). Those values of x would give (1, 2), (10, 20), (4, 8).

It is the case that you have (x, 2x) for (2, 4).

The point (2, 4) lies on the graph of y = 2x.

4 0
3 years ago
I NEED HELP ASAP PLEASE!!!!!
Bess [88]
A

plug in x = -1 to both sides and you get 1 as the answer for both sides.

8 0
3 years ago
Read 2 more answers
Write a number in the blank to make the number sentence true<br> 3 times ____&lt;1
Sedbober [7]
0 or any negative number. :)
8 0
3 years ago
Read 2 more answers
Other questions:
  • What are the slope and y intercept of the line 4y= -x - 32
    15·2 answers
  • Leah has three fewer than 4 times as many DVDs as Sonia has. Leah has 37 DVDs how many DVDs does sonia have
    12·1 answer
  • What is the value of x in the equation –x = 4 – 3x + 6?
    7·2 answers
  • PLZZZZZZZZZZZZZZZZZ HELPPPPPPPPPPPPPP ASAPPP
    7·2 answers
  • Mrs. Rivera has bars of chocolate in a box. The total mass of bars of chocolate in the box is 3 kilograms. What is the mass in g
    5·1 answer
  • Which could be the missing data item for the given set of data if the median of the complete data set is 50?
    6·2 answers
  • Need help with this. <br><br> A B C D
    10·1 answer
  • What are the values of x and y?
    7·2 answers
  • 1. Which of the following is not a linear equation in one variable?
    10·1 answer
  • Ratio of 20 to24 is ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!