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
il63 [147K]
3 years ago
7

Ten more than a number is 3 times the sum of the number and 4

Mathematics
1 answer:
DerKrebs [107]3 years ago
6 0

Answer:

Step-by-step explanation:

x + 10 = 3(x + 4)

x + 10 = 3x + 12

10 - 12 = 3x - x

- 2 = 2x

x = - 1

You might be interested in
Cot? 2x + cos2x + sin’ 2x = csc? 2x<br> Need help with 40
kkurt [141]

Answer:

\rule{100mm}{0.1mm}

    \cot^2(2x)+\cos^2(2x)+\sin^2(2x)=\csc^2(2x)

\dfrac{\cos^2(2x)}{\sin^2(2x)} +[(\cos^2(2x)+\sin^2(2x)]=\csc^2(2x)

                               \dfrac{\cos^2(2x)}{\sin^2(2x)} +1=\csc^2(2x)

                    \dfrac{\cos^2(2x)+\sin^2(2x)}{\sin^2(2x)}=\csc^2(2x)

                                    \dfrac{1}{sin^2(2x)} =\csc^2(2x)

                                     \boxed{\csc^2(2x)=\csc^2(2x)} ✔

\rule{100mm}{0.1mm}

4 0
3 years ago
In a recent​ survey, two-thirds of the 234 students in a freshman class said they watch television shows on their computer. Dete
Mkey [24]
All you would have to set up is 234  x  2/3
3 0
3 years ago
What is the solution to the following system of equations?<br><br> y=6x-11 //////<br> -2x-3y=-7
jok3333 [9.3K]
Y = 6x - 11
-2x - 3y = -7

Let's use substitution:

-2x - 3y = -7
-2x - 3(6x - 11) = -7
-2x - 18x + 33 = -7
-20x + 33 = -7
-20x = -40
x = 2

----

y = 6x - 11
y = 6(2) - 11
y = 12 - 11
y = 1

----

y = 6x - 11  =>  1 ? 6(2) - 11  =>  1 = 12 - 11  <--True
-2x - 3y = -7  =>  -2(2) - 3(1) ? -7  =>  -4 - 3 = -7  <--True

Answer:
x = 2
y = 1

Hope this helps!
6 0
3 years ago
Read 2 more answers
When the door was left open, 36 pigeons flew the coop. If this was 40 percent of all the pigeons, how many pigeons were there or
ivolga24 [154]

Answer: 90

Step-by-step explanation:

40 % = 0.40. X = number of pigeons. 0.4x =36

X = 36/0.4 = 90

4 0
3 years ago
A cone has a base radius of length r, and an perpendicular height length h. If the height remains the same, and the radius is mu
sergij07 [2.7K]

The formula for the volume of a cone is:

V= (1/3) x \pi x r^{2} x height

Since this is a quadratic equation, if the radius is multiplied by 3, then the volume is multiplied by its square, which is 9.


Hope this helps!

7 0
4 years ago
Other questions:
  • What is the answer to 2x+9=35?
    15·2 answers
  • Please help me please!!!!!!!!
    11·2 answers
  • Solve h = −16t2 + 36t + 4.
    14·1 answer
  • What is the sum of 3 x 10 6 and 3 x 10 6?
    9·1 answer
  • For what values of m does the equation mx = 5 have a single solution? can m have a value for which the equation does not have so
    8·1 answer
  • What is this number in standard form?
    9·1 answer
  • (Area of Composite Figures)Help me pls.
    7·2 answers
  • MATH TEST PLEASE HELP
    12·2 answers
  • There are 275 people in a movie theater. Of those, 150 are adults. What is the ratio of
    6·2 answers
  • PLEASe help me. DOOO NOT ANSWeR IF U DONT KNOW THE ANSWERRRR
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!