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
Volgvan
3 years ago
13

Last year,Vicki rented 131 videos,and Chris rented 80 videos.Together they rented 173 more videos than the average couple rents

in a year.How many videos does the average couple rent in a year?
Mathematics
2 answers:
Elanso [62]3 years ago
7 0

<u>Answer: </u>

The average couple rents 38 videos in a year.

<u>Solution: </u>

Given that Vicki rented 131 videos and chris rented 80 videos. We have to find out how many videos does the average coupe rent in a year.

In the question it is given that Vicky and chris rented 173 more videos than the average couple. This means that difference between the number of videos Vicky and chris rented together and that of average couple is 173.

Videos rented by (Vicky + chris) - videos rented by average couple = 173

(131+80) - videos rented by average couple = 173

211 - videos rented by average couple = 173

211-173 = videos rented by average couple

38 = videos rented by average couple.

Thus average couple rents 38 videos in a year.

Fynjy0 [20]3 years ago
3 0

Answer: 38 Videos

Step-by-step explanation:

Add Vikki’s and Chris’s videos (131+80=211)

If they rented 173 more than the average couple you need to subtract Vikki’s and Chris’s amount from 173 (211-173=38)

That will give you the average videos other couples rent

You might be interested in
If the wages of workers for a given company are normally distributed with a mean of $15 per hour, then the proportion of the wor
lakkis [162]

The proportion of the workers earning more than $13 per hour is greater than the proportion earning less than $13 per hour.

<h3>What is a normal distribution?</h3>

A normal distribution is a probability distribution that is symmetric around the mean of the distribution. This means that the there are more data around the mean than data far from the mean. A normal distribution is also known as the Gaussian distribution. When depicted on a graph, a normal distribution is bell-shaped.

To learn more about a normal distribution, please check: brainly.com/question/25846196

6 0
2 years ago
Assume that the readings on the thermometers are normally distributed with a mean of 0 degrees and standard deviation of 1.00deg
IrinaVladis [17]

Answer:

Step-by-step explanation:

Hello!

The variable of interest is the readings on thermometers. This variable is normally distributed with mean μ= 0 degrees C and standard deviation σ= 1.00 degrees C.

The objective is to find the readings that are in the top 3.3% of the distribution and the lowest 3.3% of the distribution.

Symbolically:

The lower value P(X≤a)=0.033

Top value P(X≥b)=0.033

(see attachment)

Lower value:

The accumulated probability until "a" is 0.03, since the variable has a normal distribution, to reach the value of temperature that has the lowest 3.3%, you have to work under the standard normal distribution.

First we look the Z value corresponding to 0.033 of probability:

Z= -1.838

Now you reverste the standardization using the formula Z= (a-μ)/δ

a= (Z*δ)+μ

a= (-1.838*1)+0

a= -1.838

Top value:

P(X≥b)=0.033

This value has 0.033 of the distribution above it then 1 - 0.033= 0.967

is below it.

You can rewrite the expression as:

P(X≤b)=0.967

Now you have to look the value of Z that corresponds to 0.967 of accumulated probability:

b= (Z*δ)+μ

b= (1.838*1)+0

b= 1.838

The cutoff values that separates rejected thermometers from the others are -1.838 and 1.838 degrees C.

I hope it helps!

5 0
2 years ago
What is the HCF of 216 ​
rjkz [21]

Answer:

The answer for this question is 1

8 0
3 years ago
For safety reasons, four different alarm systems were installed in the vault containing the safety deposit boxes at a Beverly Hi
larisa [96]

Answer: a) (0.99)^4

Step-by-step explanation:

Given : For safety reasons, four different alarm systems were installed in the vault containing the safety deposit boxes at a Beverly Hills bank.

Each of the four systems detects theft with a probability of .99 independently of the others .

Probability for independent events (E_1 , E_2 , E_3 , ....., E_n) occurs together =  P(E_1)\times P(E_2)\times P(E_3)\ .....\times P(E_n).

Then, the probability that when a theft occurs, all four systems will detect it

= (0.99) x (0.99) x (0.99) x (0.99)

= (0.99)^4

Hence, the probability that when a theft occurs, all four systems will detect it is (0.99)^4 .

Hence, the correct answer is a) (0.99)^4 .

5 0
2 years ago
Helpppppppppppppppppppppp
cestrela7 [59]
Help we need help!!!
7 0
2 years ago
Read 2 more answers
Other questions:
  • How many times wider is 2ft than the width of 2in
    10·2 answers
  • (radical) √450 estimated to the nearest hundredth
    7·2 answers
  • A health conscious student faithfully wears a device that tracks his steps. Suppose that the distribution of the number of steps
    5·1 answer
  • Order these in descending order (greatest to least). 3/20, 0.15%, 0.015
    9·1 answer
  • 30 is 120 percent of what number
    14·1 answer
  • ANSWER ASAPPPP PLS
    9·1 answer
  • C) {(0, 1), (2.1), (0.3) Function? Explain:<br> Is this a function or not​
    8·1 answer
  • If the 2 at last is an power in the solution of the equation then what will be the value of x?
    14·2 answers
  • I don’t know how to do it please help me
    7·1 answer
  • Simplify the expression. Write your answer as a power.<br> 3^2x3^2<br> The simplified expression is
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!