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
Lilit [14]
2 years ago
9

Y= 3x + 1

Mathematics
2 answers:
Nikolay [14]2 years ago
7 0
Answer: B. -4

When 2 equations equal the same thing (in this case y) we can just re-write the equations this way:

3x + 1 = 2x - 3

Now, just start picking off little numbers that we don’t really need to get the x alone. I don’t like working with negative numbers, so i’ll get rid of the -3 by adding 3 to it. Since anything you do on one side of an equal sign you have to do on the other, i’ll add 3 to 1, which looks like this:

3x + 1 = 2x - 3
+3 +3
3x + 4 = 2x

Now I need to get both x’s on the same side, so i’ll subtract 3x from 3x, then subtract 3x from 2x:

3x + 4 = 2x
-3x -3x
4= -x

Variables should never be negative, and they look complicated too, so in order to make x positive again i’ll swap it’s side with 4. While doing this, remember that swapping sides means you swap 4 to a negative too:

4 = -x
x= -4

And there’s the answer, X equals -4. If you wanted to solve for y, just plug in the x value (which is -4 in this case) to any one of the equations:

y= 3x + 1
y= 3(4) + 1
y= 12+ 1
y= 13

Hope this helped!
SSSSS [86.1K]2 years ago
4 0
It might be C or D im also doing substitution so i don’t really know
You might be interested in
Why can’t a line or Ray have a perpendicular bisector
kotykmax [81]

Answer:

Because they are both infinitely long.

Step-by-step explanation:

A ray goes on to infinity from a given point in one direction, whereas a line goes on to infinity in both directions.

3 0
3 years ago
Red drum, sciaenops ocellatus, is a game fish found in the Atlantic Ocean and in the Gulf of Mexico. A reasonable estimate of th
Pani-rosa [81]

Answer:

0.1513

Step-by-step explanation:

mean= 15.4

SD=4.5

P(20<X<28)

P((20-15.4)/4.5  < Z < (28-15.4)/4.5)

P(1.022 < Z< 2.8 )

From Z distribution table,

P(Z<2.8)= 0.99744

P(Z<1.022)= 0.84614

P(1.022 < Z< 2.8 )= P(Z<2.8)- P(Z<1.022)

                        =  0.99744-0.84614

                       = 0.1513

8 0
3 years ago
Help me please explain to me
In-s [12.5K]
The three really doesn't mean anything. the only thing the 3 stands for is how many times you have to multiply 0.25 . so in this situation you have to multiply 0.25 3 times.
this is how you do it when you get problems with exponents. this is the work /answer : 0.25×0.25×0.25=0.015625
3 0
4 years ago
Read 2 more answers
Shelly is going shopping at the mall to buy 3 pairs of shoes. She has a coupon for $2 off per pair of shoes after buying the fir
Gre4nikov [31]

Answer: $28-$33

Step-by-step explanation: Call the cost per pair x. She buys the first pair full price, so x, then 2 dollars off, so x-2, and 2 dollars off, so x-2, adding them up you get 3x-4= total money spent. Sinze this ranges from 80-95 solve equations and you get 28 and 33 respectively.

8 0
3 years ago
Showing your work, solve the problem. Then Circle less than ,more than, or equal to and justify how you found your solution.
Travka [436]
4/0 x 5/5 = 20/0 4x5=20
8 0
3 years ago
Other questions:
  • When 12 is added to a number and that sum is divided by 1/2, the result is 40. what is the number?
    11·1 answer
  • How do you work out the volume of a prism
    12·1 answer
  • The roots of a given function are 4i and 8. how many total roots are there?
    12·1 answer
  • EASY MATH HELP?!!?!??!?!
    13·2 answers
  • Which function shows a fabric with a price of $1.25 per square yard?
    13·2 answers
  • how much greater is the supplement of a 35-degree angle than the measure of the complement of a 35-degree angle?
    7·1 answer
  • HELP HELP PLEASE!! D:<br><br> Determine the missing side length:<br> Please don't give cap!
    5·1 answer
  • The Rodas family spends $1,120 on housing each month. This is 35% of
    11·2 answers
  • Simplest form of ratio 25g:3kg
    6·1 answer
  • Would like this problem broken down step by step thanks!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!