All categories

2 years ago

For 3/4 (three fourths) of a pound of peanuts, Jimmy paid $2.25. What is

1 answer:

3 0

3 dollars pound because since it is 3/4 you can do: 2.25/3 and get 0.75. Thus means 0.75 is 1/4 a pound. 0.75 x 4 will get you dollars for pound. So 3

You might be interested in

The n candidates for a job have been ranked 1, 2, 3,…, n. Let X 5 the rank of a randomly selected candidate, so that X has pmf p

Anon25 [30]

Answer:

A. E(x) = 1/n×n(n+1)/2

B. E(x²) = 1/n

Step-by-step explanation:

The n candidates for a job have been ranked 1,2,3....n. Let x be the rank of a randomly selected candidate. Therefore, the PMF of X is given as

P(x) = {1/n, x = 1,2...n}

Therefore,

Expectation of X

E(x) = summation {xP(×)}

= summation {X×1/n}

= 1/n summation{x}

= 1/n×n(n+1)/2

= n+1/2

Thus, E(x) = 1/n×n(n+1)/2

Value of E(x²)

E(x²) = summation {x²P(×)}

= summation{x²×1/n}

= 1/n

3 0

2 years ago

In how many ways can 12 one-dollar coins be shared between Josh, Frank, and Suzy if each of them receives at least 3 coins?

Nostrana [21]

You would use the counting principal. 12X3X3

8 0

2 years ago

WHICH INEQUILITY IS EQUIVALENT TO X-4<9

frez [133]

-------------------------------------------------------------------------------------------------------------

Answer: $\textsf{x} < \textsf{13}$

-------------------------------------------------------------------------------------------------------------

Given: $\textsf{x - 4} < \textsf{9}$

Find: $\textsf{The simplified inequality}$

Solution: In order to simplify the inequality we can simply add 4 to both sides which would isolate x.

<u>Add 4 to both sides</u>

$\textsf{x - 4 + 4} < \textsf{9 + 4}$

$\textsf{x} < \textsf{9 + 4}$

$\textsf{x} < \textsf{13}$

Therefore, an inequality that would be equivalent to the one that was provided in the problem statement is x < 13.

5 0

1 year ago

Read 2 more answers

A student rolls a number cube. What is the probability the student rolled a 5, given that the student rolled a prime number?

andre [41]

P(5 | prime number) = 1/3

8 0

2 years ago

What is the solution to this equation -10+2/3x = -4 A. No solutions exist. B. x = -9 or x = 9 C. x = -9 or x = 4 D. x = 9 or x =

solong [7]

Answer:

D. x = 9

Step-by-step explanation:

6 x 3/2 = 9

6 0

1 year ago