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3 years ago

What is 7/12 - 1/6 =

2 answers:

5 0

$\frac{7}{12} - \frac{1}{6} = \frac{7}{12} - \frac{1\times2}{6\times 2} = \frac{7}{12} - \frac{2}{12} =\frac{7-2}{12} = \huge{\boxed{\frac{5}{12}}}$

sladkih [1.3K]3 years ago

5 0

First, change -(1/6) into a fraction with a common denominator, -(2/12). Then subtract the numerators, (7-2). The answer is **5/12**

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Rewrite as a simplified fraction. 2. 14 ‾ = ?

SOVA2 [1]

Answer:

1/7

Step-by-step explanation:

- I can't really tell what the fraction you have is, I am assuming it is 2/14. If that is correct, simplify by finding a common number.

- Ask yourself, what can both be divided by? (Answer is 2)

- Knowing both simplify by 2, divide the numerator (top) and denominator (bottom) by 2.

- You should get 1/7 (2/2 = 1 and 14/2 = 7)

- If you have any further questions on this topic please let me know. I would be glad to help anytime!

6 0

3 years ago

Find the slope of the line going through the points (0, -5) and (-2,1)

kvasek [131]

Answer:

$\displaystyle m=-3$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (0, -5)

Point (-2, 1)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m=\frac{-5-1}{0--2}$
[Fraction - Denominator] Simplify: $\displaystyle m=\frac{-5-1}{0+2}$
[Fraction - Numerator] Subtract: $\displaystyle m=\frac{-6}{0+2}$
[Fraction - Denominator] Add: $\displaystyle m=\frac{-6}{2}$
[Fraction] Divide: $\displaystyle m=-3$

8 0

2 years ago

What is the height of a solid box that has a mass of 438 g, a destiny of 2.17 g/cm, a length of 40 cm, and a width of 20 cm.

lapo4ka [179]

Answer:

h ≈ 0.25 cm

Step-by-step explanation:

Hi there !

density formula

d = m/V

V = l×w×h

replace

2.17 = 438/(40×20)×h

2.17 = 438/800×h

2.17×800×h = 438

1736h = 438

h = 438/1736

h ≈ 0,25 cm

Good luck !

4 0

3 years ago

9. Solve 6/7 divided by 36/56 and put answer in simplest form.

motikmotik

The answer is C. 4/3

7 0

3 years ago

Read 2 more answers

The arrival of the city busses that trundle down my street is Poisson distributed. According to the published schedule, they arr

joja [24]

Answer:

There is a 3.33% probability that exactly two such busses arrive within 3 minutes of each other.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given time interval.

What is the probability that exactly two such busses arrive within 3 minutes of each other

The mean is one bus each 10 minutes. So for 3 minutes, the mean is 3/10 = 0.3 buses. So we use $\mu = 0.3$

This probability is P(X = 2).

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 2) = \frac{e^{-0.3}*(0.3)^{2}}{(2)!} = 0.0333$

There is a 3.33% probability that exactly two such busses arrive within 3 minutes of each other.

5 0

3 years ago