Elsie and her friends plan to drive 1048 miles during their road trip. How many gallons of gas will they need for this trip?

1 answer:

3 0

That would depend on the car and the amount of miles the car can go on one tank of gas. Divide that amount from 1048 to get the answer.

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A restaurant has an electronic system that randomly selects customers when they pay for their meal to

polet [3.4K]

Using the binomial distribution, it is found that there is a 0.81 = 81% probability that NEITHER customer is selected to receive a coupon.

For each customer, there are only two possible outcomes, either they receive the coupon, or they do not. The probability of a customer receiving the coupon is independent of any other customer, which means that the binomial distribution is used to solve this question.

Binomial probability distribution

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

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

The parameters are:

x is the number of successes.
n is the number of trials.
p is the probability of a success on a single trial.

In this problem:

For each customer, 10% probability of receiving a coupon, thus $p = 0.1$ .
2 customers are selected, thus $n = 2$

The probability that <u>neither receives a coupon is P(X = 0)</u>, thus:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{2,0}.(0.1)^{0}.(0.9)^{2} = 0.81$

0.81 = 81% probability that NEITHER customer is selected to receive a coupon.

A similar problem is given at brainly.com/question/25326823

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3 years ago

the eagle trucking company must deliver 7/8 ton of cement blocks and 5/8 ton of bricks how much will this load weigh?

Mademuasel [1]

This load will weigh 1.5 TONS ALTOGETHER.

So, the truck is delivering a $\frac{7}{8}$ ton of cement blocks, and a $\frac{5}{8}$ of bricks. To find how much this load weighs, we'd have to add the two fractions together, which proves to be quite easy, because the denominators are already the same, so we wouldn't have to change anything.

$\frac{7}{8}$ + $\frac{5}{8}$ = $\frac{12}{8}$

And now, we would want to convert that fraction into a whole number, or at least a decimal, to find how many tons the truck is carrying. So we would divide. Once the work is done, here is what would happen:

12 ÷ 8 = 1.5

And there's your answer. The truck is carrying 1.5 TONS.

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3 years ago

i suck at math. △ABC△ABC is similar to △XYZ△XYZ by the AA Similarity PostulateAA Similarity Postulate . The measure of ∠A∠A

Sidana [21]

180 degrees in a triangle. subtract the 2 know angles to get the third.
180-39-24=117

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3 years ago

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Consider a population consisting of the number of teachers per college at small 2-year colleges. Suppose that the number of teac

agasfer [191]

Answer:

a) $\frac{8}{9}$ =0.89