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
bonufazy [111]
3 years ago
11

I need help with algebra

Mathematics
1 answer:
Serga [27]3 years ago
6 0
First, you need to isolate the variable. 

Subtract four from both sides of the equation.    x/2 = -3
Multiply both sides by two.    x = -6

Substitute to check your answer.
4 + (-6)/2 = 1
4 + -3 = 1
1 = 1

Our solution is correct

You might be interested in
Write and solve a system of equations for this question please
andre [41]
Let b and s be the velocity of the boat and stream respectively....

3(b-s)=27

b-s=9

b=9+s  we will use this in the second equation....

2(b+s)=30

b+s=15, now use b found above in this to get:

9+s+s=15

2s+9=15

2s=6

s=3, and since from earlier b-s=9, b=9+s so

b=12

So the speed of the boat is 12mph and the stream is 3 mph
6 0
3 years ago
Please help me solve this problem
Alex
The answer for this is X+2g= 0
8 0
3 years ago
What type of polynomial is this ? 3x2-8x+1
Alex787 [66]

Answer:

Trinomial

degree of polynomial:2nd degree - Quadratic

Step-by-step explanation:

3 0
3 years ago
What is the mean of this? 48, 12, 35, 57, 42, 15, 74, 29. <br>ILL GIVE U BRAINLYEST​
BlackZzzverrR [31]

answer:

48 + 12 + 35 + 57 + 42 + 15 + 74 + 29 = 312

divide by number of numbers,

312 / 8 = 39

the mean is 39.

<em>if correct, please mark the brainliest :)</em>

<em />

8 0
3 years ago
Use substitution to solve the system equation.<br><br><br> n=3m-11<br><br> 2m+3n=0
prohojiy [21]

Answer:

m = 3, n = -2.

Step-by-step explanation:

Substitute n = 3m - 11 in the second equation:

2m + 3(3m - 11) = 0

2m + 9m - 33 = 0

11m = 33

m = 3.

Substitute for m in n = 3m-11:

n = 3(3) - 11

n = -2.

6 0
3 years ago
Other questions:
  • Determine the relation of the following lines: y = -2x + 4 and y = -2x + 1.
    12·1 answer
  • Evaluate the following algebraic expression if a equals 3 and b equals 4 2a^+5b
    10·1 answer
  • How to simplify 1802÷17
    8·1 answer
  • In a certain school, course grades range from 0 to 100. Adrianna took 4 courses and her average course grade was 90. Roberto too
    9·2 answers
  • Find the missing factor x^2-11x+18=(x-2)( )
    9·1 answer
  • Translate and solve: What number is 283% of 1.89? Do not round.
    13·1 answer
  • Three people bought tickets to a movie. One person payed with a $50 bill and received $23 back. If they group used a coupon for
    10·1 answer
  • Find the percent notation
    11·1 answer
  • Please do at least two whole screenshots. Thx, I'm going to spam this now.
    12·1 answer
  • 11. A square-shaped floor is covered with congruent square tiles. If the total number of tiles that lie on the two diagonals is
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!