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skelet666 [1.2K]
3 years ago
7

F(x)=-3x+21,find x when f(x)=6

Mathematics
1 answer:
balu736 [363]3 years ago
6 0

Answer:

x=5

Step-by-step explanation:

F(x)=-3x+21,

f(x)=6 = -3x+21

6 = -3x+21

Subtract 21 from each side

6-21 = -3x+21-21

-15 = -3x

Divide each side by -3

-15/-3 = -3x/-3

5 = x

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netineya [11]

Answer:

He needs to make at least 6 visits.

Step-by-step explanation:

The signing up amount, 20, is a fixed amount.

The amount he receives per movie is 12.5 times the number of visits, v, or 12.5v.

The total amount of points he earns is the sum of the fixed amount and the amount due to the number of visits.

earned points = 12.5v + 20

He must earn 95 points or more.

12.5v + 20 ≥ 95

Subtract 20 from both sides.

12.5v ≥ 75

Divide both sides by 12.5

v ≥ 6

He needs to make at least 6 visits.

8 0
2 years ago
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ValentinkaMS [17]

Answer:

c

Step-by-step explanation:

(–2)2 + (–4)2 + (18 – 23) = -4-8-5= -17

8 0
2 years ago
5. 14% of 160 000 is<br>A. 14 000<br>B. 16 000<br>C. 22 400<br>D. 24 200​
Gemiola [76]
The right answer is C)

7 0
2 years ago
How to write 85,000,011 in expanded form
4vir4ik [10]

85,000,000 + 000,000 + 000 + 11

I'm not sure if this is right because I haven't done expanded form in years. If it isn't, I'm sorry.

6 0
3 years ago
100 POINTS!!! ALGEBRA 1 PLEASE HELP!!! BRAINLIEST IF CORRECT
Ainat [17]

Answer:

<h2>1. (-6, 0) and (-1, 0)</h2><h2>2. not exist</h2><h2>3. (5, 0)</h2>

Step-by-step explanation:

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Graph #1:

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Graph #2:

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Graph #3:

x = 5

5 0
2 years ago
Read 2 more answers
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