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d1i1m1o1n [39]
1 year ago
6

Solve. (Enter your answer using interval notation.) |3x + 15| > 21

Mathematics
1 answer:
Katarina [22]1 year ago
4 0

Answer:

(-∞, -12), (2, ∞)

or

(-∞, -12) U (2, ∞)

Step-by-step explanation:

|3x + 15| > 21, |3x + 15| < -21

3x + 15 > 21,  3x + 15 < - 21

     -15    -15         -15     -15

------------------   -------------------

3x > 6               3x < - 36

÷3  ÷3               ÷3     ÷3

------------         ------------------

x > 2                  x < -12

(-∞, -12), (2, ∞)

or

(-∞, -12) U (2, ∞)

I hope this helps!

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For which of the following compound inequalities is there no solution?
Alexxx [7]

Answer: -4m-10< -22 and -8>22

Step-by-step explanation:

3 0
3 years ago
Rudy has 10 white she sells 23 pink seashells and 21 Brown see cells if he divides the cells into equally between three friends
Alex_Xolod [135]

Answer:

Each friend will get 18 sea shells.

Step-by-step explanation:

Given:

Rudy has white sea shells = 10

Rudy has pink sea shells = 23

Rudy has brown sea shells = 21

Number of friends = 3

Rudy divides the sea shells into equally between three friends.

We need to find how many sea shells each friend can get.

Now first we find the total number sea shells.

Total number of sea shells = white sea shells + pink sea shells + brown sea shells = 10 + 23 + 21 = 54

Now to find number of sea shell each friend can get we will divide total number of sea shell with number of friends.

number of sea shell each friend can get = \frac{\textrm{Total number of sea shells}}{\textrm{ Number of friends}} = \frac{54}{3}=18

Hence each friend will get 18 sea shells.

8 0
3 years ago
How many percent is 10 3/20?
Liula [17]
3/20 is the same as 15/100 or 15%
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Is that what you were asking?
6 0
3 years ago
The product of -2 and a number x is greater than 30 Write the word sentence as a inequality, then solve inequality, thank you!
anygoal [31]
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7 0
3 years ago
How do I solve x+4y=22<br> -x+5y=23
xxTIMURxx [149]
{ x + 4y = 22     ( + x - x = 0 )
{ - x + 5y = 23

4y + 5y = 22 + 23
9y = 45
  y =<u> 45 </u>
         9
  y = 5

x + 4y = 22
x + 4 . 5 = 22
x + 20 = 22
x = 22 - 20
x = 2

S = { 2 , 5 }


3 0
3 years ago
Read 2 more answers
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