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frez [133]
3 years ago
6

Find all real values of x for which f(x) = 0. f(x) = 30 - 5x

Mathematics
1 answer:
Roman55 [17]3 years ago
4 0

Answer:

f(x) = 30 - 5x \\ f(x) = 0 \\ 30 - 5x = 0 \\ 30 = 5x \\ 5x = 30 \\ x =  \frac{30}{5}  \\   \purple{\boxed{ \red{x = 6}}}

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Student to faculty ratio is 17:3 total for bo th h is 740. How many students and how many faculty
svetlana [45]

We can represent 17:3 with 17x and 3x

17x + 3x = 740

20x = 740

x = 37

17(37):3(37)

629 students and 111 school faculty members.

5 0
3 years ago
A tractor costs $15,450 and depreciates in value by 14% per year how much will the tractor be worth after 3 years
____ [38]

Answer:

$8,961 is your answer.

Step-by-step explanation:

What you do is multiply.

<em>15,450 x 14% = 2,163</em>

<em>2,163 x 3 = $6,489</em>

<em>$15,450 - $6,489 = $8,961</em>

$8,961 is your answer.

8 0
3 years ago
Read 2 more answers
What is the area of the circle below if it is 18 m
DiKsa [7]

Answer:

A≈1017.88 if r=18m or A≈254.47 if r=9

Step-by-step explanation:

A=Pi*r^2, plugging in 18 m or 9 m since lack of info but i assume you are giving 18m total length of circle, gives us answer.

6 0
4 years ago
Can someone help me? It's urgent and thank you!
-BARSIC- [3]

Given:

Number of red marbles = 5

Number of blue marbles = 4

Number of yellow marbles = 3

To find:

The probability of pulling a red marble, then pulling a blue marble, without replacement.

Solution:

Probability formula:

\text{Probability}=\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}

We have,

Number of red marbles = 5

Total number of marbles is:

5+4+3=12

Probability of getting a red marble is:

P(Red)=\dfrac{5}{12}

After selecting one red marble, the remaining number of marbles is 11 and the number of blue marbles is 3. So,

P(Blue)=\dfrac{4}{11}

Now, the probability of pulling a red marble, then pulling a blue marble, without replacement is:

\text{Probability percentage}=P(Red)\times P(Blue)\times 100

\text{Probability}=\dfrac{5}{12}\times \dfrac{4}{11}\times 100

\text{Probability}=15.1515...

\text{Probability}\approx 15.2\%

Therefore, the correct option is B.

5 0
3 years ago
What is the perimeter of the following figure?​
PSYCHO15rus [73]

Answer:

13.4 x 2 = <em>26.8</em>

<em>12.5</em>

HYPOTENUSE:

10^2 + 12.5^2 = 256.25

Square root of 256.25 = around 16

which would equal 256

<em>16 </em>is your hypotenuse.

26.8 + 12.5 + 16 = 55.3 is your perimeter

3 0
2 years ago
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