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
Xelga [282]
3 years ago
13

Solution of equation 3x-5y= 4 4x+3y=15

Mathematics
1 answer:
12345 [234]3 years ago
7 0
3x-5y=4------eq1
4x+3y=15-------------eq2

multiply 3 to first eq and 5 to second eq.

9x-15y=12
20x+15y=75

subtract both eqs

29x=87 x=3 so put x in eq 1

3(3)-5y=4
5y=5
y=1
You might be interested in
Consider the two graphs above.
Mariulka [41]

Answer:

B. Graph 2 represents a proportional relationship, but graph 1 does not.

Step-by-step explanation:

All proportional relationships pass through the origin. Graph 2 does but Graph 1 does not. Additionaly, Graph 2 is a straight line that represents a proportional relationship. Another way to find out if it is proportional is to find the constant of proportionality by dividing the y by the x in different parts of the line. The numbers should all have the same constant of proportionality.

Examples (all found in Graph 2):

15/3 = 5

10/2 = 5

5/1 = 5

7 0
2 years ago
Read 2 more answers
Sin(-x)= -cos x for all values of x. True or false
kogti [31]

Answer:

That's incorrect. The simplest way to show this is by evaluating the functions at a given point. Let's say x=0, then:

Sin(-x) = Sin(0) = 0

-cos x = -cos (0) = -1

Therefore, Sin(-x)≠-cos x.

5 0
3 years ago
Read 2 more answers
I will appreciate a quick answer
Elan Coil [88]

Answer:

∠SRQ = 75º, ∠TQR = 75º, ∠TSR = 105º, ∠STQ = 105º

Step-by-step explanation:

Since the quadrilaterals are similar, their corresponding angles are the same.  

3 0
2 years ago
Which three lengths could be the lengths of the sides of a triangle?
ZanzabumX [31]

Answer:

c

Step-by-step explanation:


5 0
3 years ago
Jenny bakes 10 cookies. She puts 7 chocolate chips on each cookie. Draw a tape diagram, and label the total amount of chocolate
IgorC [24]
Jenny bakes 10 cookies. she puts 7 chocolate chips on each cookie draw a tape diagram and label the total amount
3 0
3 years ago
Other questions:
  • Write a function in terms of t that represents the situation.
    14·1 answer
  • Use the rules for multiplication by powers of 10 to calculate 3 × 100. a. 3 b. 300 c. 30 d. 3,000
    8·1 answer
  • Laine reads 25 pages in 30 minutes. If Laine reads 200 pages at this same rate, how long will it take her
    15·2 answers
  • 4(h+11)-15<br> The solution
    15·1 answer
  • Find the missing side of each triangle. Leave your answers in simplest radical form. Write your answer with no spaces. .* 14 m 1
    12·1 answer
  • The perimeter of the rectangle is 28 units.
    8·1 answer
  • A Jeep uses 14.6 gallons of gas to travel 328.5 miles.
    12·1 answer
  • 2. In the figure below, which pairs of angles are supplementary?
    11·1 answer
  • A population numbers 18,000 organisms initially and grows by 16% each year.
    14·1 answer
  • 2m(3m² + 4m + 6) box method and standard form I don’t get it
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!