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2 years ago

What is $5.60 for 4 pounds as a unit rate.

Mathematics

1 answer:

Sphinxa [80]2 years ago

5 0

so you can either do pounds per dollar or dollars per pound:

pounds per dollar : about 0.71 lbs / $

dollars per pound : $1.40 / lb

i hope this helped, based on the question i believe that it is dollars per pound but its good to know both and have a nice day

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Simplify the given expression. (18+ - 8)2

JulsSmile [24]

Answer:

Step-by-step explanation:

Our expression:

2 * (18 + - 8)

Plus then minus (+ -) is the same as just minus ( - )

Some examples:

1 + (+ 1) = 2

1 + (- 1) = 0

1 - (+ 1) = 0

1 - (- 1) = 2

Thus, 18 + - 8 is the same as 18 - 8

2 * (18 + - 8) =

= 2 * (18 - 8) =

= 2* (10) =

= 2 * 10 =

= 20

Answer: 20

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2 years ago

In a lottery game, a player picks six numbers from 1 to 21. If the player matches all six numbers, they win 40,000 dollars. Othe

Darina [25.2K]

Answer:

The expected value of this game is -$0.26.

Step-by-step explanation:

Expected value:

Each possible earning/loss multiplied by it's probability.

Probability:

Number of desired outcomes divided by the number of total outcomes.

In this question, the order in which the numbers are chosen is not important. So we use the combinations formula to solve.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Probability of winning:

Desired outcomes:

The 6 correct numbers, so $D = 6$

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Probability:

$p = \frac{1}{54265}$

Expected value

$\frac{1}{54265}$ probability of earning 40,000.

$\frac{54264}{54265}$ probability of losing 1. So

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The expected value of this game is -$0.26.

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Basile [38]

The answer would be 3 more

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Answer:

Solution By Gauss jordan elimination method

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bearhunter [10]

Answer:

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