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
Lynna [10]
3 years ago
8

Find the solution to the system of equations: x + 3y = 7 and 2x + 4y = 8 1. Isolate x in the first equation: 2. Substitute the v

alue for x into the second equation: 3. Solve for y:       4. Substitute y into either original equation: 5. Write the solution as an ordered pair:     x = 7 – 3y 2(7 – 3y) + 4y = 8 14 – 6y + 4y = 8 14 – 2y = 8 –2y = –6 y = 3 x + 3(3) = 7 (, )
Mathematics
2 answers:
Dmitrij [34]3 years ago
8 0

Answer:

Thx. (-2, 3) is correct

Step-by-step explanation:

klemol [59]3 years ago
6 0
X + 3y = 7
x = -3y + 7

2x + 4y = 8
2(-3y + 7) + 4y = 8
-6y + 14 + 4y = 8
-2y = 8 - 14
-2y = - 6
y = -6/-2
y = 3

x + 3y = 7
x + 3(3) = 7
x + 9 = 7
x = 7 - 9
x = -2

solution is (-2,3)
You might be interested in
Help pls!!
hodyreva [135]

Answer:

C) 33 meters

Step-by-step explanation:

In this question, we need to find the value of the variable "x".

To do this, we must use the Pythagorean theorem: a² + b² = c²

Plug in your values and solve:

56² + b² = 65²

3,136 + b² = 65²

3,136 + b² = 4,225

Subtract 3,136 from both sides.

b² = 1,089

To cancel out the exponent, we would square root both sides.

√b² = √1,089

b = 33

This means that C) 33 meters will be your answer.

3 0
3 years ago
Read 2 more answers
If the mountain at a convergent plate boundary is growing at a rate of 1.6 mm per year, how much higher will it be in 50 years ?
Mrrafil [7]
The mountain will be at 80mm long in 50 years because 50 times 1.6mm equals 80
5 0
3 years ago
Solve the following equation for n 18n^2-50=0
Firdavs [7]

18n^2-50=0\ \ \ |+50\\\\18n^2=50\ \ \ |:18\\\\n^2=\dfrac{50}{18}\\\\n^2=\dfrac{50:2}{18:2}\\\\n^2=\dfrac{25}{9}\to n=\pm\sqrt{\dfrac{25}{9}}\\\\n=\pm\dfrac{\sqrt{25}}{\sqrt{9}}\\\\\boxed{n=-\dfrac{5}{3}\ \vee\ n=\dfrac{5}{3}}

Used:\\\sqrt{\dfrac{a}{b}}=\dfrac{\sqrt{a}}{\sqrt{b}}

3 0
3 years ago
1. Use the inequality 12≥6(12x+2).
svetoff [14.1K]
The answer would be 72x + 12 but I’m not sure but that’s what I got
8 0
3 years ago
Read 2 more answers
Please help!! greatly appreciated
Tom [10]
I think the answer is 43.988
7 0
3 years ago
Read 2 more answers
Other questions:
  • Which employee's path is the critical path on this activity graph? Explain how you know that this employee's path is the critica
    13·1 answer
  • Maddie has 1 and 1 fifth cups of powdered sugar .she sprinkles 1 half of the sugar onto a plate of brownies and sprinkles the re
    12·1 answer
  • On Saturday, a local hamburger shop sold a combined total of 544 hamburgers and cheeseburgers. The number of cheeseburgers sold
    12·1 answer
  • While in Canada, Renita bought a
    14·1 answer
  • Ccacacvssvvssjdsvshxb de s zzz dat herh
    12·1 answer
  • Determine in which direction the parabola below opens. y = x2 - 7x + 18 A. left B. right C. up D. down
    5·2 answers
  • 8 ft 6 inches is greater or less than 100 inches?
    6·1 answer
  • stephen and bridget win some money and share it in the ratio 5:2. stephen gets £65. how much does bridget get
    7·1 answer
  • A data set consists of the following data points:
    15·1 answer
  • Simplify the expression 8^2+9(12/3*2)-7 Step by step please :)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!