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
hjlf
3 years ago
10

I need help asap with math

Mathematics
1 answer:
Dmitrij [34]3 years ago
4 0
I'm not even going to bother with the substitution method.
Instead of all that, I just want to show you something:

Take the FIRST equation:

                                       y - 2x = 8
Add  2x  to
each side:                      y        = 8 + 2x

Multiply each
side by  2 :                    2y  =  16 + 4x

Look at that !  The first equation says the same thing as the second one !
Both of them are actually the same equation.
You actually have only one equation, with 'x' and 'y' in it.
If you graph it, the graph is a straight line, and EVERY point
on the line is a solution of the equation.

==>  There are an infinite number of solutions, because
they only gave you one equation, with two unknown variables.
To find a unique solution, you'd need two equations.
You might be interested in
Bill earns $12 per hour and works at most 40 hours per week. Identify the independent and dependent quantity in the situation, a
mixer [17]
The situation can be modeled as a linear equation:
 y = 12x
 Where
 y: amount of dollars.
 x: hours worked.
 Independent variable: x (hours worked).
 Dependent variable: y (amount of dollars).
 he works at most 40 hours per week
 Domain: x belongs [0, 40]
 To determine the range, we must calculate how much Bill earns per week
 y = 12 * (40) = 480.
 Range: y belongs [0, 480]
 answer
 Independent variable: x (hours worked).
 Dependent variable: y (amount of dollars.
 Domain: x belongs [0, 40]
 Range: y belongs [0, 480]
3 0
3 years ago
Write the equation of the parabola in vertex form.<br> vertex (2.4), point (3. - 3)
Kobotan [32]

Answer:

(y−3)2=16(x−2) is the equation of the parabola. Explanation: Whenever vertex(h,k) is known to us, we must preferably use the vertex form of the parabola:

Step-by-step explanation:

6 0
3 years ago
Can you explain to me what is 20% of 150, and how to get it?
arsen [322]

Answer:

30

Step-by-step explanation:

20% = 20/100= 1/5

It is 1/5 of the number 150

Taking the problem what is 20% of 150

Is means equals and of means multiply

what is 20% of 150

W = 20% * 150

Change 20% to a decimal

W = .20 * 150

W = 30

7 0
3 years ago
Read 2 more answers
Describe the probability of rolling a die and landing an even number while tossing a coin and landing on heads.
Dahasolnce [82]

Answer:

1/12

Step-by-step explanation:

When you flip a coin there are two possible outcomes (heads or tails) and when you roll a die there are six outcomes(1 to 6). Putting these together means you have a total of 2×6=12 outcomes.

4 0
3 years ago
Read 2 more answers
Determine if you would use &lt;, &gt;, or = to complete the statement:
Virty [35]
I’ll answer this later but use an equation 180 degrees
4 0
2 years ago
Other questions:
  • There are 95 cherry pieces in 5 bags of candy.How many pieces per bag?
    14·1 answer
  • How many 5 digit codes can be formed from the digits 1,2,3,4,5,6 and 7 if digits cannot be repeated
    8·1 answer
  • please answer the question on the screenshot below, also please explain to me how you got your answer.
    6·1 answer
  • Delia has two more than three times the number of model cars that Orlando has. If Orlando has c model cars, which algebraic expr
    12·1 answer
  • Help on number 12 please?​
    8·1 answer
  • Val has 2 hours to finish a slide presentation. It takes her 1/6 hour to create each slide. Will Val have enough time to create
    11·1 answer
  • Please help I don't know how to do​
    8·1 answer
  • I need help with number 13 please hurry
    10·1 answer
  • If 3 is subtracted from 5 times a number, the result is the same as 9 added to the number. Find the number.
    15·1 answer
  • If(√14/√7-2)-(√14/√7+2)=a√7+b√2 find the values of a and b where a and b are rational numbers​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!