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hram777 [196]
2 years ago
8

Solve for n.

Mathematics
2 answers:
natita [175]2 years ago
6 0

Answer:

B. n=7.5

Step-by-step explanation:

if a+b=c then

c-b=a

Temka [501]2 years ago
3 0
Answer: n=7.5
Hope this helps!
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Evaluate, 2x-6 if x=.5​
kkurt [141]

Answer:

-5

Step-by-step explanation:

2x-6

2(.5)-6

1-6

-5

6 0
3 years ago
Select all of the points that are solutions to the system of linear inequalities that is listed below 10x + 4y < 12 8x -3y &g
liberstina [14]

Answer:

(3, -8) and (2, -10)

Step-by-step explanation:

Given

10x + 4y < 12

8x - 3y > 20

Required

Select the true coordinate points in (3, -8) (2, 5) (-5, 1) (10, 3) (2, -10)

(3, -8)

x = 3 and y = -8

10x + 4y < 12

10 * 3 + 4 * -8 < 12

30 - 32 < 12

-2 < 12 --- True

8x - 3y > 20

8 * 3 - 3 * -8> 20

24 +24> 20

48> 20 --- True

(2, 5)

x = 2 and y = 5

10x + 4y < 12

10 * 2 + 4 * 5 < 12

20 + 20 < 12

40 < 12 --- False (No need to check the other inequality)

(-5, 1)

x = -5 and y = 1

10x + 4y < 12

10 * -5 + 4 * 1 < 12

-46 < 12 --- True

8x - 3y > 20

8 * -5 - 3 * 1 > 20

-43 > 20 --- False

(10, 3)

x = 10 and y = 3

10x + 4y < 12

10 * 10 + 4 * 3 < 12

112 < 12 --- False (No need to check the other inequality)

(2, -10)

x = 2 and y = -10

10x + 4y < 12

10 * 2 + 4 * -10 < 12

-20 < 12 --- True

8x - 3y > 20

8 * 2 - 3 * -10 > 20

46 > 20 --- True

Hence, the solution to the inequalities are:

(3, -8) and (2, -10)

4 0
2 years ago
What is the answer to this 3a^2-9a
olchik [2.2K]
If i'm correct, the answer should be

-3a

hope this helped! 8)

4 0
3 years ago
Read 2 more answers
What is 1/4 * 4x + 8
Mandarinka [93]
X+2 is the correct answer
6 0
3 years ago
IM GIVING BRAINLIEST!!PLEASE HELP!!
melomori [17]

Answer:

D

Step-by-step explanation:

(x - 3)(x + 4) = x^2 + x - 12

8 0
2 years ago
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