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3 years ago

11

Jenny bought gas for her car. Gas costs $3.45 per gallon. Jenny bought 12.5 1 point gallons. What was the total cost for Jenny's

gas?

2 answers:

Ghella [55]3 years ago

8 0

$3.45 is the cost of one gallon. So 3.45 times 12.51 gallons = 43.1595, rounded to $43.16

NemiM [27]3 years ago

4 0

Answer:

Step-by-step explanation:

Well first we have to find the total so it's multiplaction/repeteaed addition.

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Assume a recent sociological report states that university students drink 5.10 alcoholic drinks per week on average, with a stan

Lerok [7]

Answer:

Mean of sampling distribution = 5.10 alcoholic drinks per week

Standard deviation of the sampling distribution = 0.11

Step-by-step explanation:

We are given the following in the question:

Mean, μ = 5.10 alcoholic drinks per week

Standard Deviation, σ = 1.3401

Sample size, n = 150

a) Mean of sampling distribution

The best approximator for the mean of the sampling distribution is the population mean itself.

Thus, we can write:

$\mu_{\bar{x}} = \mu = 5.10$

b) Standard deviation of the sampling distribution

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{1.3401}{\sqrt{150}} = 0.11$

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3 years ago

The average amount that a college student spends on a textbook is $205. What is the probability that a students spends between $

garri49 [273]

Complete question :

The average amount that a college student spends on a textbook is $205 with a

standard deviation of $35. What is the probability that a student spends:

A. between $10 and $310?

Answer:

0.999

Step-by-step explanation:

Mean, m = 205 ; Standard deviation, s = 35

Z = (x - m) / s

x = 310

Z = (310 - 205) / 35 = 3

P(z < 3) = 0.99865

x = 10

Z = (10 - 205) / 35 = - 5.57

P(Z < - 5.5)

P(z < 3) - P(z < - 5.5)

0.99865 - 0

= 0.999

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3 years ago

Walter slater sells appliances and earns 2.5 percent commission in addition to his salary. last month he sold $63,000 in applian

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63,000 ÷ 100 = 630

630 x 2.5 = 1,575.00

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3 years ago

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A recipe calls for cup of broth. The largest volume-measuring tool that Tabitha has is a teaspoon. She knows that there are 16 t

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1c = 16t = x( $\frac{1}{3}$ )
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She should use 48 teaspoons of broth.

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3 years ago

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Solve the proportion

mario62 [17]

Answer:

$\boxed{\sf x = 5}$

Step-by-step explanation:

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3 years ago