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
suter [353]
3 years ago
14

Solve the equation for y: -8x + 4y = 20 A) y = 2x - 5 B) y = 2x + 5 Eliminate C) y = 1 2 x + 5 D) y = 1 2 x + 20

Mathematics
2 answers:
iogann1982 [59]3 years ago
8 0
Y=2x+5 (B) You have to bring 8x to the other side of the equal sign (by addition) and divide both sides by 4.
Tatiana [17]3 years ago
6 0

Answer:

its b.

Step-by-step explanation:

You might be interested in
Please help me out and show work
lina2011 [118]

Answer:

s(x)=\frac{0.2}{x+5}

Step-by-step explanation:

In 5 liters, there is 4% salt.

Lets find liters of salt.

First, converting 4% to decimal (dividing by 100):

4% = 4/100 = 0.04

0.04 * 5 = 0.2

So, there is 0.2 liters of salt.

Now, x liters of water is added to total, so total is now:

5 + x

The concentration of salt will be amount of salt divided by amount of salt water solution.

Amount of salt = 0.2 (as seen above)

Amount of new salt water solution = x + 5

So,

Concentration of salt in new solution is  \frac{0.2}{x+5}

2nd choice is right.

4 0
3 years ago
A company sells t-shirts for $6 each. They also charge a one-time processing fee of $3 per order. Jamie ordered t-shirts and pai
jenyasd209 [6]
$45-$3 
you would do this to take out the processing fee.
$42/ $6
this is because each shirt cost $6
the equation would be (45-3) / 6= 7]  
your answer would be 7 shirts 
4 0
3 years ago
Can someone help me with this
Kisachek [45]

Answer:

2, 4, 6, and 8, respectively

Step-by-step explanation:

The rule says that 2 times the x value, which we are given, equals to y, which we must find. So all we hve to do is multiply each of the given x values by two to get the y value.

7 0
3 years ago
Read 2 more answers
Which angle has a sine of -1/2 and a cosine of -√3/2
Sergeeva-Olga [200]
\sin x=-\dfrac{1}{2} < 0\\\\\cos x=-\dfrac{\sqrt3}{2} < 0\\\\therefore\ x\in(180^o;\ 270^o)

\text{We know:}\ \tan x=\dfrac{\sin x}{\cos x}\\\\\text{therefore:}\ \tan x=\dfrac{-\frac{1}{2}}{-\frac{\sqrt3}{2}}=\dfrac{1}{2}\cdot\dfrac{2}{\sqrt3}=\dfrac{1}{\sqrt3}\cdot\dfrac{\sqrt3}{\sqrt3}=\dfrac{\sqrt3}{3}

\tan x=\dfrac{\sqrt3}{3}\Rightarrow x=30^o+180^o\cdot k;\ k\in\mathbb{Z}

x\in(180^o;\ 270^o)\ therefore\ \boxed{x=30^o+180^o=210^o}
8 0
3 years ago
What is the product? (3a^2b^7)(5a^3b^8)
vitfil [10]
15a^5 b^15 Is The Answer 
4 0
3 years ago
Other questions:
  • A1,a2,a3....a30-each of these 30 sets has 5 elements.b1,b2,....bn-each of these n sets has 3 elements.union of a1,a2...a30=union
    15·1 answer
  • You have several pieces of wood 0.83m 1.26m 0.53m 4.09m 3.5m add the lengths together to give the total length
    11·2 answers
  • I NEED HELP PLEASE!!
    10·1 answer
  • A delivery truck drove 48 miles per hour. It took 4 hours to travel between two towns. What is the distance between the two town
    10·2 answers
  • When traveling with the wind, it takes an airplane 3 hours to travel 1800 miles. It takes the same airplane 3.6 hours to travel
    8·1 answer
  • How many integers between 27 and 53 have a remainder of 4 divided by 6
    6·1 answer
  • What is the approximate value of the square root of 8 rounded to the nearest tenth?
    14·1 answer
  • Select the correct answer. What is the value of this expression when a = 7 and b = -4?
    8·1 answer
  • If you can solve, i will give brainliest!
    8·1 answer
  • How many three-digit multiples of 5 have three different digits?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!