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
Vladimir [108]
2 years ago
11

Solve the system y= 4x + 1 and 3x+2y =13

Mathematics
1 answer:
Irina18 [472]2 years ago
3 0

Given :

{\qquad \sf \dashrightarrow  y= 4x + 1 \: –––– \sf \:  (i)}

{\qquad \sf \dashrightarrow   3x + 2y = 13 \: –––– \sf \:  (ii)}

Now, Substituing the value of y in equation (ii) :

{\qquad \sf \dashrightarrow   \: 3x + 2y = 13   }

{\qquad \sf \dashrightarrow   \: 3x + 2(4x + 1) = 13   }

{\qquad \sf \dashrightarrow   \: 3x + 8x + 2 = 13   }

{\qquad \sf \dashrightarrow   \: 11x + 2 = 13   }

{\qquad \sf \dashrightarrow   \: 11x  = 13 - 2   }

{\qquad \sf \dashrightarrow   \: 11x  = 11   }

{\qquad \sf \dashrightarrow   \: x  =  \dfrac{11}{11}    }

{\qquad \sf \dashrightarrow   \bf \: x  = 1   }

Now, substituting the value of x in equation (i) :

{\qquad \sf \dashrightarrow  y= 4x + 1}

{\qquad \sf \dashrightarrow  y= 4(1) + 1}

{\qquad \sf \dashrightarrow  y= 4 + 1}

{\qquad \bf \dashrightarrow  y= 5}

You might be interested in
The distance along a circle between two<br>points on the circle​
GarryVolchara [31]

Answer:Diameter

Step-by-step explanation:The diameter is how far away one point on a circle is from another point straight across on a circle.

8 0
3 years ago
Read 2 more answers
Use substitution method <br>3x +4y+175x-2y=11​
Viefleur [7K]

3x +4y+175x-2y=11

4y-2y+175x+3x=11

2y+178x=11

2y=11-178x

y=\frac{11-178x}{2}

y=-89x+\frac{11}{2}

178x=-2y+11

x=\frac{-2y+11}{178}

x=\frac{-1}{89} y+\frac{11}{178}

4 0
2 years ago
What the answer is ?
fgiga [73]

Answer:

A. 5 + 2.75 · S ≤ 21

Step-by-step explanation:

So we know that it has to be less than or equal to $21 because that's all she has to spend. So we can automatically rule out the equations with ≥  because that means greater than.

We can also rule out the equations that have 50 at the very end because that's just how far she wants to travel.

4 0
2 years ago
3, 3, 6, 18, 72, whats next
Jet001 [13]

 Answer: 360

 

Justification:

The pattern is  * 2, * 3, * 4,...
 Missing number = 72 * 5 = 360.

5 0
3 years ago
Which equation has the same soultions as X^2+6x-7=0
NeTakaya
\\\\\huge\text{The answer is in the attachment !!!}

5 0
3 years ago
Read 2 more answers
Other questions:
  • I need help with this quick
    9·1 answer
  • Suppose that 10 sophomores, 3 juniors, and 10 seniors are candidates for a prestigious mathematics award of which three will be
    11·1 answer
  • Geometry help pretty please 15 points plus brainliest plus be my friend x3
    9·2 answers
  • (c + b + a) + (-2a - 3b + c)
    10·2 answers
  • Which relation is a function
    7·2 answers
  • Find the value of x pls help thank u so much
    5·2 answers
  • In 2014, a toy store sold 11,831 stuffed animals. In 2015, the toy store sold 13,170 more stuffed animals than it did in 2014. T
    11·1 answer
  • Carmen's butterfly has wings that are 25 centimeters long. How many millimeters is the length of the wings?
    15·2 answers
  • Lea walked 1/2 mile in 1/3 hour. How long will it take lea to walk 2 1/4 miles ?
    5·2 answers
  • Emily is saving money for her vacation. She started with 23.00 and earns 8.00 each day. How much money will she have on day 10?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!