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Anna35 [415]
2 years ago
8

Solve for Variable: 3x + 7 < 16 A. x > 3 B. x < 5 C. x > 6 D. x < 3

Mathematics
1 answer:
romanna [79]2 years ago
4 0

Answer:

D. x < 3

Step-by-step explanation:

3x + 7 < 16

To solve, we have to isolate x.

3x + 7 < 16

Subtract 7 from both sides :

3x < 9

Divide 3 from both sides :

x < 3

Now in some cases, you could say that the inequality sign would switch, but this is only when you divide by a negative sign, so keep that in mind.

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Fred has 230 animals at his zoo. Grace at 349 more animals in her zoo than Fred has. how many animals do they have altogether? T
WARRIOR [948]

Step-by-step explanation:

okay so im in 8th grade and i just worked the problem out and i got , 809 ,

first you add 230 + 349 to see how much she has in her farm

she has 579, then you add 579 because she has that many , and he has 230 so you add 579 +230 and tou get 809

work:

230

+349

----------

579

+230

---------

809

hope i helped!!

4 0
3 years ago
What is the slope of this line?
OLga [1]
The slope of this line is -2. 

rise/run

rise = 4 
run = -2 
  
      4 
   ------- = -2
     -2 

Using the points (1,0) & (0,2)

     2 - 0         2
  ----------- = ----- = -2
    0 - 1         -1

6 0
3 years ago
Read 2 more answers
In triangle ABC, a = 4, b = 6, and cos C = − 1/4. What is the length of side c?
shusha [124]

The length of side c would be 8.

Step-by-step explanation:

Given that,

a = 4

b = 6

cosC = -1/4

If we are given two sides and angle, the law of Cosines can be used to find the third side:

c^{2} = a^{2} + b^{2} - 2ab (cos(c))

By inserting the values in the formula, we get

c^{2} = 4^{2} + 6^{2} - 2.4.6 (-\frac{1}{4} )

c^{2} = 16 + 36 + 12

c^{2} = 64

\sqrt{c^{2} } = \sqrt{64}

c = 8.

Therefore, the length of side c would be 8.

7 0
3 years ago
Seven times the product of negative six and a number
jonny [76]
7 times -6x, because “a number” can be replaced with x
4 0
2 years ago
Read 2 more answers
|-6|-|7-41|? <br><br> A. -40<br> B. -28<br> C. 28<br> D. 40<br> E. 54
Nina [5.8K]

Answer:

the answer to this question is b. -28

8 0
3 years ago
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