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
Dafna11 [192]
3 years ago
10

What is the value of x in the equation? –30 = 3x + 21

Mathematics
1 answer:
Sergio039 [100]3 years ago
4 0

Answer:

-17

Step-by-step explanation:

as the picture says I have moved 21 so that the numbers are together and it's easier to solve then you move 3 to divide it on the other side and x is left alone.

You might be interested in
A restaurant sells burritos for $8.00 each. To buy supplies, the restaurant pays $1.50 for the meat and $1.00 for the other ingr
3241004551 [841]

Answer:

isnt it just 2.50$ ?

Step-by-step explanation:

1$ + 1.5$ = 2.5$ ?

meat + everything else = total

6 0
3 years ago
Read 2 more answers
Graph the system of equations on your graph paper to answer the question.
scZoUnD [109]
<span>y=x-4
y=-x+6 
---------------------
Substitute x - 4 for y in </span>y=-x+6 
x-4=-x+6<span>
--------------------------------
Add X on each side
</span><span>x-4+x</span>=-<span>x+6+x
</span>2x - 4 = 6
--------------------------------------
Add 4 on each side
<span>2x-4+4</span>=<span>6+4
</span>2x = 10
------------------------------------------------
Divide by 2 on each side
2x ÷ 2 = 10 ÷ 2
x = 5
Now we have X
================================================================
To find Y we substitute 5 for x in y=<span>x-<span>4
</span></span>y = 5 - 4
y = 1
-----------------------------------------------------
Your answers are Y = 1 and X = 5

8 0
3 years ago
. What is the solution to the equation –3.5(x + 12) = –2x + 18?
kotegsom [21]

Answer:

x=-4.36

     

Step-by-step explanation:

4 0
2 years ago
Emmanuel carves a cone-shaped hollow out of a solid clay cylinder. What is the approximate volume of the solid portion of the cy
bixtya [17]

Answer:

3.14r^2(h-\frac{1}{3}h_1)

Step-by-step explanation:

Let h be the cylinders height and r the radius.

-The volume of a cylinder is calculated as:

V=\pi r^2h

-Since the cone is within the cylinder, it has the same radius as the cylinder.

-Let h_1be the height of the cone.

-The area of a cone is calculated as;

V=\pi r^2 \frac{h}{3}\\\\=\frac{1}{3}\pi r^2h_1

The volume of the  solid section of the cylinder is calculated by subtracting the cone's volume from the cylinders:

V=V_{cy}-V_{co}\\\\=\pi r^2h-\frac{1}{3}\pi r^2 h_1, \pi=3.14\\\\=3.14r^2(h-\frac{1}{3}h_1)

Hence, the approximate area of the solid portion is 3.14r^2(h-\frac{1}{3}h_1)

5 0
3 years ago
Add fractions with unlike denominators
stealth61 [152]

Answer:

1 5/12  i think im sorry if i get it wrong.

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • When converting between two measurement units, how can you tell which operation to use
    10·1 answer
  • Help please please I really need help
    11·1 answer
  • Someone Help please!
    15·1 answer
  • I really need help with this one please help me thank you​
    12·1 answer
  • PLZ ANSWER QUICK!!! FULL QUESTION IN PHOTO!!!​
    7·2 answers
  • What number represents having 5 dollars
    6·2 answers
  • Help please!!! Question is in the picture​
    11·2 answers
  • Find the equation of the line that contains the given point and has the given slope.P(−1, 7), m = −3
    11·1 answer
  • All items in a clothing store are on sale for the same percentage off the original price.
    8·2 answers
  • How many boxes of markers must be sold for the company’s income to equal the cost of production
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!