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
zhannawk [14.2K]
3 years ago
13

Use substitution to solve for x in the system of equations.

Mathematics
1 answer:
jolli1 [7]3 years ago
6 0
Equation 1) 10x + 2y = 30
Equation 2) 4x + y = 4

Multiply all of equation 2 by 2.

2)  2(4x + y = 4)

2)  8x + 2y = 8
1)  10x + 2y = 30

Subtract equations from each other.

-2x = -22

Divide both sides by -2.

x = -22/-2

x = 11

B) x = 11

~Hope I helped!~


You might be interested in
Find the slope of the line.
Damm [24]

y2-y1 / x2-x1 is how to get slop3 for 2 points (x1,y1) and (x2, y2). So 4-1 / 2-0 and the slope is 3/2. If this is right could you possibly give me brainliest? Hope this helped.

8 0
3 years ago
What is the value of x <br> Enter your answer, as a decimal in the box
Maru [420]

Answer:

the answer is 8.334

Step-by-step explanation:

3 0
2 years ago
julia has 80$.she wants to purchase a nail paint set for 16$.she spends the rest of her money on earrings.each pair of earrings
EastWind [94]
The answer will be 74 hope this help :)
6 0
2 years ago
What is the area for a circle
nignag [31]

Answer:

Area for a circle is

Step-by-step explanation:

=pi*r^2

=22/7*r^2

#Hope it helps uh

5 0
3 years ago
Read 2 more answers
You and a friend buy two fruit smoothies and leave a tip. You split the total and your half comes to $3.60. What percent (in dec
KATRIN_1 [288]
You left 20% tip. all you do is divide the tip,0.60, by the total , 3.
5 0
3 years ago
Other questions:
  • Graph the following inequality. Then click to show the correct graph. y ≤ -2
    12·2 answers
  • Can someone help me out with this question !!!
    6·1 answer
  • How can patterns help me divide multiples of 10?<br>​
    6·1 answer
  • Find the angle between the diagonal of a cube of side length 15 and the diagonal of one of its faces, so that the two diagonals
    11·1 answer
  • The next model of a sports car will cost 5.6% less than the current model. The current model costs $52,000. How much will the pr
    13·1 answer
  • Right triangle PQR has sides of length 6 units, 8 units, and 10 units. The triangle is dilated by a scale factor of 4 about poin
    14·1 answer
  • Express the inequality s &gt; -4 using interval notation<br> Provide your answer below:
    7·2 answers
  • Please help, will give extra points
    11·1 answer
  • Can a graph be linear with a outlier
    5·1 answer
  • What is the functions domain ?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!