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
Pepsi [2]
3 years ago
9

-3x-12>8x+21 please help 30 points!!!!!!!!!!!!!!

Mathematics
1 answer:
hram777 [196]3 years ago
6 0
-3x-12> 8x + 21
+12 +12
-3x > 8x + 33
-8x -8x

-11x > 33
————-
-11

x < -3

I moved the real numbers to one side and and the variable to the other side to solve for the inequality

I also remembered somewhere that if you divide by a negative number the inequality sign switches.
You might be interested in
Part A: Rhett made $250 washing cars with his mobile car wash company. He charges $70 per car and earned $50 in tips. Write an e
neonofarm [45]

Answer:

250=70x+50

Step-by-step explanation:

4 0
2 years ago
What is the surface area of the rectangular prism below 7, 7, 14
Julli [10]

Answer:

Surface Area   A = 490 cm²

Step-by-step explanation:

Surface area of a prism A = 2(w l +h l + h w)

where l = length

        w = width

        h = height

l = 7 cm; w = 7 cm ; h = 14 cm

Surface Area = 2 { ( 7 × 7) + ( 14 × 7) + ( 14 × 7)}

            A = 2 { 49 + 98 + 98}

            A = 2 × 245

            A = 490 cm²

8 0
3 years ago
More points!!!!!111111
Orlov [11]

Answer:

Yes thank you

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
i'm giving brainiest right now so first one who has correct gets brainiest!!The length of one side of a square pond is 15 feet.
marysya [2.9K]
It’s easiest to think about it this way:

If the pond is 15 feet wide, then adding 3 feet to each side would increase the side length to the square by six feet (3 feet on each side). This makes the area within the square equal to 18x18 feet, or 324 square feet. But, this isn’t the area of the sidewalk, it’s the area of the sidewalk plus the area of the pool.

The pool is fifteen feet wide, which means that it has an area of 225 square feet. So, to find the area of the side walk, we can subtract the area of the pool from the area of the pool and sidewalk, which will give us the area of the sidewalk by itself.

324-225=99 square feet.

The pool has an area of 225 square feet, and the sidewalk has an area of 99 feet.
3 0
3 years ago
22. In which of the following drawings is DE parallel to AC?
AleksandrR [38]

Answer:

idk

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Pythagoras' theorem​
    9·2 answers
  • Evaluate 13+6/y when y = 6
    9·2 answers
  • What is the successor of the number 2012
    9·1 answer
  • Simplify -3p - 2m + 8p - 7m
    5·1 answer
  • What are the prime numbers
    10·2 answers
  • The volume of the cylinder above is 2,314.25, and the radius of the base is 8.9 Find the volume of the cone.
    5·2 answers
  • Which of these graphs represent a rate of change of 4 ?
    5·2 answers
  • Assuming that $3u + 12v\neq0$, simplify $\dfrac{12u^3 + 48u^2v}{3u+12v}$.
    9·1 answer
  • Increase 58.50 by 10% working
    10·2 answers
  • Put together, Albert and Jason have
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!