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2 years ago

Lisa paid 45.30 for 15.9 gallons of gasoline.what was the cost per gallon, rounded to the nearest hundreath

Mathematics

2 answers:

dimulka [17.4K]2 years ago

6 0

Answer:

$2.85

Step-by-step explanation:

45.30/15.90=2.849

rounded up to the nearest hundreth would be $2.85.

bogdanovich [222]2 years ago

6 0

Answer:

About $2.85 per gallon

Step-by-step explanation:

We can set up a proportion $\frac{45.3}{15.9}$ = $\frac{x}{1}$ we can then cross multiply, getting 15.9x=45.3. When you divide you get about $2.85

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The mean is 0.0118 approximately. So option C is correct

<h3><u>Solution:</u></h3>

Given that , The probability of winning a certain lottery is $\frac{1}{77076}$ for people who play 908 times

We have to find the mean number of wins

$\text { The probability of winning a lottery }=\frac{1}{77076}$

Assume that a procedure yields a binomial distribution with a trial repeated n times.

Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial.

$n=908, \text { probability } \mathrm{p}=\frac{1}{77076}$

$\text { Then, binomial mean }=n \times p$

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