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2 years ago

How do you solve this problem and what did you do to gain the answer 1/64+5/8-3/32=?

2 answers:

3 0

The answer is 35/64 or 0.546875 in decimal form

first we write all numerators above the least common denominator 64
1+40-6
————
64

next we solve the numerators by doing 1+40-6 to get 35/64

LUCKY_DIMON [66]2 years ago

3 0

Answer:

the answer is 35/64(in fraction) but in decimals it's 0.55

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A group consists of fivefive men and sevenseven women. FourFour people are selected to attend a conference.

exis [7]

Answer:

Step-by-step explanation:

4 people can be selected in ways=12 P4=12×11×10×9=11880

4 women can be selected in ways=7P4=7×6×5×4=840

$P=\frac{840}{11880} =\frac{7}{99}$

6 0

3 years ago

10x4ones= ones=<br> 10x2tens= tens=

Vsevolod [243]

Well, 10x4=40 because 10+10+10+10=40 and that means your answer must be 40 ones or you asked something else.

5 0

3 years ago

An apartment complex rents an average of 2.3 new units per week. If the number of apartment rented each week Poisson distributed

masya89 [10]

Answer:

$P(X\leq 1) = 0.331$

Step-by-step explanation:

Given

Poisson Distribution;

Average rent in a week = 2.3

Required

Determine the probability of renting no more than 1 apartment

A Poisson distribution is given as;

$P(X = x) = \frac{y^xe^{-y}}{x!}$

Where y represents λ (average)

y = 2.3

<em>Probability of renting no more than 1 apartment = Probability of renting no apartment + Probability of renting 1 apartment</em>

<em />

Using probability notations;

$P(X\leq 1) = P(X=0) + P(X =1)$

Solving for P(X = 0) [substitute 0 for x and 2.3 for y]

$P(X = 0) = \frac{2.3^0 * e^{-2.3}}{0!}$

$P(X = 0) = \frac{1 * e^{-2.3}}{1}$

$P(X = 0) = e^{-2.3}$

$P(X = 0) = 0.10025884372$

Solving for P(X = 1) [substitute 1 for x and 2.3 for y]

$P(X = 1) = \frac{2.3^1 * e^{-2.3}}{1!}$

$P(X = 1) = \frac{2.3 * e^{-2.3}}{1}$

$P(X = 1) =2.3 * e^{-2.3}$

$P(X = 1) = 2.3 * 0.10025884372$

$P(X = 1) = 0.23059534055$

$P(X\leq 1) = P(X=0) + P(X =1)$

$P(X\leq 1) = 0.10025884372 + 0.23059534055$

$P(X\leq 1) = 0.33085418427$

$P(X\leq 1) = 0.331$

Hence, the required probability is 0.331

6 0

2 years ago

The difference when 7 less than a number is subtracted from twice the number is 12. What is the number?

Softa [21]

2n-(n-7)=12
n+7=12
12-7=5
n=5

6 0

3 years ago

How many social security numbers are available if the only restriction is that the number 000-00-0000 cannot be assigned?

harkovskaia [24]

Each digit can be 0-9 ( 10 numbers)
there are 9 numbers in a social security number

multiply 10 nine times:
10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 = 1,000,000,000 ( 1 billion) possibilities.

the restriction is it can't be all zeros so subtract 1 from the total
1,000,000,000 - 1 = 999,999,999 combinations

3 0

2 years ago