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
Nadya [2.5K]
2 years ago
8

- 8th Grade Math - Solve the system of equations: 2x - 4y = 10, x = 2y + 5

Mathematics
1 answer:
4vir4ik [10]2 years ago
4 0

Answer:

All real numbers

Step-by-step explanation:

Since x=2y+5, and 2x-4y=10, substitute 2y+5 for x into 2x-4y=10

2(2y+5)-4y=10

Use distributive prop.

4y+10-4y=10

10=10

Since both sides of the equation are always equivalent,

All real numbers work, since the two equations are the same line.

You might be interested in
EVALUATE 8+3⋅4 OVER 2 THE ANSWERS ARE 8<br> 10<br> 16<br> 22
slavikrds [6]
PEMDAS so you do 3*4 which equals 12, then you add 8=20 20/2=10

7 0
3 years ago
The human population doubles approximately every 50 years if there were 2.5 million people in 1950 how many people are forecaste
Margarita [4]
The equation that would let us determine the number of people or population at a certain year is calculated through the equation,

    A(t) = A(o)(2^(t - 1950)/50)

Substituting the known values,

   A(t) = (2.5 million people)(2^(2100 - 1950)/50))

   A(t) = 20 million 

<em>Answer: 20 million people</em>
3 0
3 years ago
Y=-4x graph equation
AleksandrR [38]

y = -4x

y = mx+b

b = 0

m = -4

here are some basic directions:

1. mark the point (0, 0) on the coordinate plane since b, aka the x intercept (where the line intersects with the x axis)

2. mark another point (1, -4) on the coordinate plane since we have defined a hawt slope ykyk

3. use the two points to guide ur ruler and draw a line idk how to describe it but yeah <3

4 0
3 years ago
A big dump truck delivers gravel to a construction site. The dump truck has a rectangular bed that is 3 meters wide and 4 meters
uysha [10]

Answer:

24m^3

Step-by-step explanation:

Volume is L x W x H which is base times width times height. So you take the Length (3), the width (4) and the height (2) you multiply them together to get 24m. but your not done. you have to add the exponent

3 0
3 years ago
Yuri, Sam and Dani had the same math homework last night, but none of them finished it. Yuri finished 3/8 of her homework, Sam f
wolverine [178]
5 bruhsjddjdjdkrmdivi kfkvkdk rkvkriv
4 0
3 years ago
Other questions:
  • How do I do I convert the USA money to the polish??
    15·1 answer
  • Someone plz help
    9·1 answer
  • If a worker is paid $8.16 per hour and works 8.5 hours in one week, how much is he or she paid for that week? A. $65.68 B. $65.2
    15·2 answers
  • Beth solved the system of equations by making a substitution for y in the second equation.
    6·1 answer
  • The brand name of a certain chain of coffee shops has a 54% recognition rate in the town of Coffleton. An executive from the com
    6·1 answer
  • What is 83 divided by 3
    8·1 answer
  • Subtract (2x3 + 9x − 8) − (4x2 − 15x + 7).
    7·2 answers
  • NEED HELP ASAPInstructions: Find the length of the missing sides. Round your answers to the
    11·1 answer
  • 3/4 of Hari's marbles are black and 1/5 are green. What would be the ratio of black marbles to the green marbles?
    6·2 answers
  • A thermometer falls from a weather
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!