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3 years ago

Which one of the following represents “nine less than three times a number is fourty” 9n-3n=40

Mathematics

2 answers:

aleksandrvk [35]3 years ago

8 0

Answer:

3n-9=40

Step-by-step explanation:

i just had this graded, it was multiple choice.

lys-0071 [83]3 years ago

6 0

3n-9=40 is your answer :)

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masya89 [10]

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4 0

3 years ago

I need to know the answer to those two equations

sladkih [1.3K]

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18x-30-7x=25
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3 0

3 years ago

A study shows that employees who begin their workday at 9:00 a.m. vary their times of arrival uniformly from 8:40 a.m. to 9:30 a

jeka94

Answer:

0.2 or 20%

Step-by-step explanation:

If the times of arrival vary uniformly, there is an equal chance of an employee reporting at any given time between 8:40 and 9:30.

The range between 8:40 and 9:30 is 50 minutes.

The range between 9:00 and 9:10 is 10 minutes.

Therefore, the probability that a randomly chosen employee reports to work between 9:00 and 9:10 is:

$P(9:00\leq X\leq 9:10)=\frac{10}{50}=0.20=20\%$

The probability is 0.2 or 20%.

6 0

3 years ago

Given that y=x^(1/3) , use calculus to determine an approximate value for ∛8030

Alex777 [14]

F(x) = x^(1/3)
f(8000) = 8000^(1/3) = 20

f'(x) = 1/3 * x^(-2/3)
f'(x) = 1/(3x^(2/3))
f'(8000) = 1/(3*8000^(2/3)) = 1/(3*400) = 1/1200

Linear approximation for f(x) about x = 8000
L(x) = f(8000) + f'(8000) (x−8000)
L(x) = 20 + 1/1200 (x−8000)

8030^(1/3) ≈ L(8030)
= 20 + 1/1200 (8030−8000)
= 20 + 30/1200
= 20 + 1/40
= 20.025

8 0

3 years ago

What is $4,000 / 12 months rounded to the nearest whole number

loris [4]

Answer:

$333

Step-by-step explanation:

4,000 / 12 is about 333.34

Rounding the .34 down to the nearest whole number (0), we end up with about $333.

6 0

3 years ago