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
aivan3 [116]
3 years ago
7

28-(3c+4)=2(c+6)+c Solve for c

Mathematics
1 answer:
VLD [36.1K]3 years ago
3 0
Omiting\ brackets:\\28-(3c+4)=2(c+6)+c\\\\28-3c-4=2c+12+c\\\\-3c-2c-c=12-28+4\\\\-6c=12\ \ \ \ \ |:-6\\\\c=-2
You might be interested in
Help please? 15 points here
MakcuM [25]

Answer:

64°

Step-by-step explanation:

In circle with center P, AD is diameter.

\therefore m\angle DPE + m\angle APE = 180\degree \\\therefore  (33k-9)\degree + 90\degree = 180\degree \\\therefore (33k-9)\degree  = 180\degree -90\degree \\\therefore  (33k-9)\degree  = 90\degree \\\therefore  33k-9 = 90\\\therefore 33k= 90+9\\\therefore  33k= 99\\\therefore  k= \frac{99}{33}\\\therefore  k=3\\ m\angle CPD = (20k +4)\degree \\\therefore m\angle CPD = (20\times 3 +4)\degree \\\therefore m\angle CPD =(60+4)\degree \\\therefore m\angle CPD =64\degree \\m\overset {\frown}{CD} = m\angle CPD\\\therefore m\overset {\frown}{CD} = 64\degree

4 0
3 years ago
Solve 10e^2x - 5 =23^x for x.
yawa3891 [41]

10e^{2x}-5=23e^x\qquad\text{subtract}\ 23e^x\ \text{from both sides}\\\\10e^{2x}-23e^x-5=0\\\\10(e^x)^2-23(e^x)-5=0\\\\\text{substitution:}\ e^x=t > 0\\\\10t^2-23t-5=0\\\\10t^2-25t+2t-5=0\\\\5t(2t-5)+1(2t-5)=0\\\\(2t-5)(5t+1)=0\iff2t-5=0\ \vee\ 5t+1=0\\\\2t=5\ \vee\ 5t=-1\\\\t=\dfrac{5}{2} > 0\ \vee\ t=-\dfrac{1}{5} < 0\\\\\text{therefore}\ e^x=\dfrac{5}{2}\to\ln e^x=\ln\left(\dfrac{5}{2}\right)\\\\\boxed{x=\ln\left(\dfrac{5}{2}\right)}

5 0
3 years ago
Read 2 more answers
Help me please look at the file
Alchen [17]

Answer:

350 will be your answer :)

Step-by-step explanation:

so i did 70 divided by 2 because 140 divided by 70 = 2

and 70 divded by 2 IS 35!

But wait that isn't what it's asking for right?

then i did 35 TIMES 10 cuz that's what it;s asking for

i got 350 and so should you so in conclusion 350 is your answer

Hopefully this helped!

8 0
3 years ago
Read 2 more answers
Find an ordered pair (x y) that is a solution to the equation calculator
galina1969 [7]
Pick a value for 'x' then solve for the 'y'

Ex: X=6 then 6-2y=2 then 4=2y then y=2y

So your answer will be 6,2.

Another answer to your question would be 4,1.
7 0
3 years ago
Running from the top of a flagpole to a hook in the ground there is a rope that is 10 meters
zimovet [89]

Answer:

16 meters basic math

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • which statement is true of a rectangle that has an area of 4x2 + 39x -10 square units and a width of (x + 10) units?
    5·2 answers
  • 3.) Fill in the blank.
    10·1 answer
  • Plzzz help and show working out *DONT JUST PUT THE ANSWER*<br><br><br> Ignore my working out
    14·1 answer
  • The decay of 277 mg of an isotope is described by the function A(t)= 277e-0.019t, where t is time in years. Find the amount left
    5·1 answer
  • (3x + 23) degree (7x - 37) degree find m angle XYV
    5·1 answer
  • Find the x-coordinates where f ' (x)=0 for f(x)=2x+sin(4x) in the interval [0, pi]
    10·1 answer
  • What is the x-intercept of the line with the equation 1/2x + y= -15 ? Please help
    7·1 answer
  • The manager of a restaurant found that the cost to produce 300 cups of coffee is ​$30.43​, while the cost to produce 500 cups is
    12·1 answer
  • 25=10+5k<br> What does k equal?<br> I need help!
    5·2 answers
  • PLEASE PLEASE SOMEONE HELP. ILL MARK YOU BRAINLY ANSWER ASAP
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!