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
Reika [66]
3 years ago
7

What is the y-value of the solution to the system of equations? 3x + 5y = 1 7x + 4y = −13

Mathematics
1 answer:
brilliants [131]3 years ago
6 0
3x + 5y = 1 . . . . . . . . (1)
7x + 4y = -13 . . . . . . .(2)
(1) x 7: 21x + 35y = 7 . . (3)
(2) x 3: 21x + 12y = -39 .(4)
(3) - (4) = 23y = 46
y = 46/23 = 2
You might be interested in
Factor p^2-q^2-2p+2q
Grace [21]
Not sure of the answer but i know what factors
p ^2 - 2p

p (p-2)

-q^2 +2q

-q (q-2)

so maybe (p-q) (p-2) (q-2)
6 0
3 years ago
Read 2 more answers
PLEASE I NEED HELP URGENTLY
aleksandrvk [35]

Answer:

4.95+0.10x=120

Step-by-step explanation:

Hope this helps

5 0
3 years ago
The length of the remote car is 8 1/2 inches to nearest half inch and 8 1/4 to the nearest quarter inch. Which measurement is mo
dangina [55]

Answer:

Step-by-step explanation:

3 0
3 years ago
The pizza below has been cut with 3 diameters what is the m AB<br><br> PLEASE HELP
Drupady [299]

Answer:

79

Step-by-step explanation:

see which ones are vertical to each other and since they are vertical to each other they are the same degree then and all of the numbers you already have and the answer from that subtract it from 360 and them divide it by 2 .

64+64=128

37+37=74

128+74=202

360-202=158

158÷2=79

8 0
3 years ago
The general form of an parabola is 4y2 + 40y + 3x + 103 = 0
valentinak56 [21]

The standard form of the parabola is   x = -4/3y² -40/3y -103/3

What is parabola?

A parabola is an approximately U-shaped, mirror-symmetrical planar curve in mathematics. It corresponds to a number of seemingly unrelated mathematical descriptions, all of which can be shown to define the same curves. One way to describe a parabola is with a point and a line.

 x = -4/3(y +5)² -1

Solve for x.

 x = (4y² +40y +103)/(-3)

 x = -4/3y² -40/3y -103/3 . . . . 'standard form' in the US

__

Taking our clues from the graph*, we can write the vertex form equation as ...

 x = -4/3(y +5)² -1 . . . . . . 'standard form' in other places

____

* The vertex is (-1, -5), so for some leading coefficient, the equation will be ...

 x = a(y -(-5))² +(-1) = a(y +5)² -1

The value of 'a' is the scale factor. Here, that is the difference between the parabola value (x = -2 1/3) and the vertex value (x = -1) one unit away from the vertex.

To learn more about parabola visit:brainly.com/question/21685473

#SPJ4

5 0
1 year ago
Other questions:
  • Solve the equation for t. -5(t-5)+9t=6t-4solve the equation for t. -5(t-5)+9t=6t-4
    6·1 answer
  • I am struggling on how to rationalize the denominators and simplify the problem.
    5·2 answers
  • 1. In the morning, the temperature
    7·1 answer
  • Find a. Roud to the nearest tenth:<br> 2cm<br> 15*<br> a<br> 105*<br> c
    10·1 answer
  • Solve the following inequality then select all answers in the solution set. 8y - 5 &lt; 19
    9·1 answer
  • Please help me i need it right now
    15·2 answers
  • FOLLOW DIRECTIONS PLEASE! WILL MARK BRAINLIEST! MORE QUESTIONS TO COME!
    10·2 answers
  • For the polynomial f(x) = 3x^3 + 3x^2 - 13x + 12 determine the average rate of change between the two given values for x
    15·1 answer
  • 1.What must be used to tell if a collection of items is a set?
    13·1 answer
  • The 2nd and 5th terms of a gp are 1/18 and 4/243 respectively. Find
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!