1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
klio [65]
3 years ago
13

Zebediah is an American traveling with a tour group in Eastern Europe. During a stop in Romania, he purchases a souvenir that is

priced at 177 Romanian leu using his credit card. If the exchange rate that day is USD to RON = 2.89, which is the best estimate of the charge Zebediah will later find on his credit card statement?
a. $450
b.$147
c.$153
d.$50
Mathematics
2 answers:
densk [106]3 years ago
8 0

Answer:

Option D = $50 is correct answer.

Step-by-step explanation:

Cost of souvenir = 177 RON

If the exchange rate that day is USD to RON = 2.89 means 1 USD =2.89 RON. We have to convert RON to USD to know how much Zebediah will be charged.

2.89 RON = 1 USD

177 RON = \frac{177}{2.89} = 61.24 USD

As this price of USD 61.24 is closest to $50 in all the given options, so option D is the correct answer.

velikii [3]3 years ago
5 0
<span><u>Answer </u>
$50

<u>Explanation </u>
Zebediah has to convert his Romania leu to USD.
You are told that,
1 USD = 2.89 RON
This will mean that if you are to convert RON to USD, you divide it by 2.89.
1USD=2.89RON
177RON=(177/2.89)USD
=$61.24
The question asks what the estimate is. From the choices given, the closest answer to $61.24 is $50.  
</span>
You might be interested in
How is this problem factored? 35x^2-57x-44
faust18 [17]
You can use the quadratic formula with it which will be easier 
or simple factoring 
it will be (5x-11)(7x+4)
7 0
2 years ago
The table shows Frank and his brother's monthly salaries.
Luba_88 [7]

Answer:

the first blank is frank

the second blank is $15

Step-by-step explanation:

3 0
2 years ago
Write an equation<br> in slope y-intercept form A(2,6),m=0
REY [17]

Solve for b:

y = 0x + b

6 = 0 + b

b = 6

The answer is y = 0x + 6

3 0
3 years ago
Test scores of the student in a school are normally distributed mean 85 standard deviation 3 points. What's the probability that
Mrrafil [7]

Answer:

The probability that a random selected student score is greater than 76 is \\ P(x>76) = 0.99865.

Step-by-step explanation:

The Normally distributed data are described by the normal distribution. This distribution is determined by two <em>parameters</em>, the <em>population mean</em> \\ \mu and the <em>population standard deviation</em> \\ \sigma.

To determine probabilities for the normal distribution, we can use <em>the standard normal distribution</em>, whose parameters' values are \\ \mu = 0 and \\ \sigma = 1. However, we need to "transform" the raw score, in this case <em>x</em> = 76, to a z-score. To achieve this we use the next formula:

\\ z = \frac{x - \mu}{\sigma} [1]

And for the latter, we have all the required information to obtain <em>z</em>. With this, we obtain a value that represent the distance from the population mean in standard deviations units.

<h3>The probability that a randomly selected student score is greater than 76</h3>

To obtain this probability, we can proceed as follows:

First: obtain the z-score for the raw score x = 76.

We know that:

\\ \mu = 85

\\ \sigma = 3

\\ x = 76

From equation [1], we have:

\\ z = \frac{76 - 85}{3}

Then

\\ z = \frac{-9}{3}

\\ z = -3

Second: Interpretation of the previous result.

In this case, the value is <em>three</em> (3) <em>standard deviations</em> <em>below</em> the population mean. In other words, the standard value for x = 76 is z = -3. So, we need to find P(x>76) or P(x>-3).

With this value of \\ z = -3, we can obtain this probability consulting <em>the cumulative standard normal distribution, </em>available in any Statistics book or on the internet.

Third: Determination of the probability P(x>76) or P(x>-3).

Most of the time, the values for the <em>cumulative standard normal distribution</em> are for positive values of z. Fortunately, since the normal distributions are <em>symmetrical</em>, we can find the probability of a negative z having into account that (for this case):

\\ P(z>-3) = 1 - P(z>3) = P(z

Then

Consulting a <em>cumulative standard normal table</em>, we have that the cumulative probability for a value below than three (3) standard deviations is:

\\ P(z

Thus, "the probability that a random selected student score is greater than 76" for this case (that is, \\ \mu = 85 and \\ \sigma = 3) is \\ P(x>76) = P(z>-3) = P(z.

As a conclusion, more than 99.865% of the values of this distribution are above (greater than) x = 76.

<em>We can see below a graph showing this probability.</em>

As a complement note, we can also say that:

\\ P(z3)

\\ P(z3)

Which is the case for the probability below z = -3 [P(z<-3)], a very low probability (and a very small area at the left of the distribution).

5 0
3 years ago
Yesterday I ran 9.6 miles at an average speed of 0.4 miles per 5 minutes. How long did it take me to run the 96 miles?​
Alexeev081 [22]

Answer:

Step-by-step explanation:

This is how we do it in college, I hope I can be of some help.

First, you multiple 9.6 miles with 5 minutes. Then, you divide your answer with 0.4 miles. Next, you cancel the two mile units because of division and then be left with 120 minutes.

9.6 miles x <u>    5 minutes   </u> = <u>  48 miles x minute </u> = 120 minutes

                      0.4 miles          0.4 miles

8 0
3 years ago
Other questions:
  • A country is planning to decrease government spending in order to reduce the national debt. If the outlined changes are put into
    7·2 answers
  • PLEASE HELP!!! Best answer will get brainliest! Thanks :)
    7·1 answer
  • Help me please o(* ̄▽ ̄*)ブ(づ ̄ 3 ̄)づ
    10·1 answer
  • What is the best way to classify each equation?
    10·1 answer
  • What is the least common denominator of 1/2 and 3/7
    15·2 answers
  • HEEEEELP please i need it
    13·2 answers
  • What the answer for my test cause I’m struggy
    5·1 answer
  • What is f+41=−27 thanks
    14·1 answer
  • What statements are true and what statements are false?
    6·1 answer
  • Tamara is considering two different groups for her relay-race team. Listed below are the different practice times, in minutes, r
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!