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
Vika [28.1K]
3 years ago
12

4x – 3y=8 2. 5x – 2y = -11

Mathematics
1 answer:
AlladinOne [14]3 years ago
6 0

Answer:

x = -7

y =  - 12

Step-by-step explanation:

The given system is:

4x-3y=8

5x-2y=-11

We make x the subject in the top equation to get:

x =  \frac{3}{4}y + 2

Plug this expression for x in the bottom equation to get

5( \frac{3}{4}y + 2) - 2y=  - 11

We expand to obtain

\frac{15}{4} y + 10 - 2y =  - 11

Multiply through by 4

15y + 40 - 8y =  - 44

Group similar terms

15y - 8y =  - 44 - 40

7y =  - 84

y =  -  \frac{84}{7}  =-12

This means

x =  -12\times  \frac{3}{4}  + 2

x =  - 7

You might be interested in
I WILL GIVE BRAINLISET!! no links por favor <br><br> 8) Simplify.
Marina CMI [18]

Answer:

√ 15  + √ 10

Step-by-step explanation:

The answer is above                                                                            

3 0
3 years ago
What is compression
zysi [14]

Answer:

the action of compressing or being compressed.

the reduction in volume (causing an increase in pressure) of the fuel mixture in an internal combustion engine before ignition.

Step-by-step explanation:

corona is real

7 0
3 years ago
How far is the little guy from the flagpole (assuming a right angle between the flagpole and the ground)? Explain how you got yo
Naya [18.7K]

Answer:

b = 9 ft

Step-by-step explanation:

Pythagorean Theorem:

a^2 + b ^2 = c^2

Given:

a = 12

b = ?

c = 15

Plug in values:

12^2 + b^2 = 12^2

Solve for b^2:

b^2 = 15^2 - 12^2

b^2 = 225 - 144

b^2 = 81

Take square root of both sides to find b:

sqrt(b^2) = sqrt(81)

b = 9


Hope this helps! :)

7 0
3 years ago
Jerry is getting ballons for his fathers bday party if he wants each ballon string to be 9 feet long if it is sold by the yard a
Zepler [3.9K]

Answer:

567

Step-by-step explanation:

63 x 9

7 0
3 years ago
Use properties to evaluate (-25) HIS O A. – 15 5 O B. 5 C. - OC. 15 O D. 1​
Arisa [49]

Answer:

-15/4

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • I need the answers for 11-13 please and thank you is you can only do one of them that’s okay with me
    10·1 answer
  • What is 3/4 of a ribbon that is 7 feet long?
    7·1 answer
  • Simplify the expression, 2+10x+8<br> *2-16
    13·1 answer
  • A 48 in board is cut into two pieces one board is three times as long as the other how long are the pieces
    10·2 answers
  • Solve the equation x2 = 10.<br> x = 3/10<br> X = ✓10<br> x = +5<br> X = 5
    10·1 answer
  • Find the x-intercepts of the parabola with vertex (1,-17) and y-intercept (0,-16)...
    11·1 answer
  • What is the point y=3x-13
    12·1 answer
  • Each of the 25 balls in a certain box is either red, blue, or white and has a number from 1 to 10 painted on it. If one ball is
    10·1 answer
  • Solve for x: 5x + 2 = 4x - 9.<br> 07<br> O-7<br> O 11<br> 0-11
    15·2 answers
  • Hi Gus who ever answers these questions I will give brainlist
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!