answer.
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
Aneli [31]
2 years ago
5

Tim installs 50 square feet of his floor in 45 minutes. At this rate, how long does it take him to install 495 square feet? (Ple

ase show ur work)
Mathematics
2 answers:
Alenkinab [10]2 years ago
5 0

Answer:

445.5min=595²ft

Step-by-step explanation:

y=0.9x

y=0.9*495

y=445.5

Nuetrik [128]2 years ago
4 0

Answer:

445.5 minutes

Step-by-step explanation:

Tim installs 50 square feet of his floor in 45 minute . Let us calculate it as a rate

Since he installs 50 ft² of his floor in 45 minute. How many square ft will he install in 1 minutes

50 ft² → 45 minutes

? →         1 minute

he will install 50/45 ft² per minute

50/45 ft² →  1 minute

495 ft² → ? minute

cross multiply

495 × 45/50

22275 /50

445.5 minutes

You might be interested in
The probability of a train arriving on time and leaving on time is 0.8. The probability that the train arrives on time and leave
kkurt [141]

Answer:

<u>0.9524</u>

Step-by-step explanation:

<em>Note enough information is given in this problem. I will do a similar problem like this. The problem is:</em>

<em>The Probability of a train arriving on time and leaving on time is 0.8.The probability of the same train arriving on time is 0.84. The probability of the same train leaving on time is 0.86.Given the train arrived on time, what is the probability it will leave on time?</em>

<em />

<u>Solution:</u>

This is conditional probability.

Given:

  • Probability train arrive on time and leave on time = 0.8
  • Probability train arrive on time = 0.84
  • Probability train leave on time = 0.86

Now, according to conditional probability formula, we can write:

P(Leave \ on \  time | arrive \  on \ time) = P(arrive ∩ leave) / P(arrive)

Arrive ∩ leave means probability of arriving AND leaving on time, that is given as "0.8"

and

P(arrive) means probability arriving on time given as 0.84, so:

0.8/0.84 = <u>0.9524</u>

<u></u>

<u>This is the answer.</u>

5 0
2 years ago
Eric throws a biased coin 10 times. He gets 3 tails. Sue throw the same coin 50 times. She gets 20 tails. Aadi is going to throw
NISA [10]

Answer:

(1) Correct option (A).

(2) The probability that Aadi will get Tails is 0.40.

Step-by-step explanation:

The information provided is:

  • Eric throws a biased coin 10 times. He gets 3 tails.
  • Sue throw the same coin 50 times. She gets 20 tails.

The probability of tail in both cases is:

P(T|E)=\frac{3}{10}=0.30

P(T|S)=\frac{20}{50}=0.40

Here,

P (T|E) implies the probability of tail in case of Eric's experiment.

P (T|S) implies the probability of tail in case of Sue's experiment.

(1)

Now, it is given that Aadi is going to throw the coin once.

According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.

In this case we need to compute the probability of Aadi getting Tails in a single toss.

As Sue uses a larger number of trials in the experiment, i.e. n = 50 > 30 times, according to the Central limit theorem, Sue's estimate is best because she throws it .

Thus, the correct option is (A).

(2)

As explained in the first part that Sue's estimate is best for getting a tail, the probability that Aadi will get Tails when he tosses the coin once is:

P(\text{Aadi will get Tails})=P(T|A)

                                   =P(T|S)\\\\=0.40

Thus, the probability that Aadi will get Tails is 0.40.

8 0
1 year ago
Read 2 more answers
1. A researcher is interested in studying whether or not listening to music while jogging makes people run faster. He thinks tha
castortr0y [4]

Step-by-step explanation:

1.Assuming the same sample size and considering the same value for the errors ( not taking into consideration the type of music, the volume of the sound and cow familiar the runner is with that type of stimuli, age group, time of the day/ number of days, running conditions like wether and equipment, distance) one can state:

A. Music has no influence over the running speed ( when jogging) in Washington DC

B.When listening to music, people ( in Washington DC) run faster while jogging

The mean running speed is a simple, ponderate or other type of mean ( that takes into consideration the variations of speed at the beginning and by the end of the race?

4 0
2 years ago
R(-9, 4) and S(2,-1); Find T.
madreJ [45]

Answer:

12.083 units

Step-by-step explanation:

Here we are given with two coordinates and asked to determine the distance between them.

Here we are going to use the distance formula, which is given as under

D=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}

Where

(x_1,y_1) = (-9,4)

(x_2,y_2) = (2,-1)

Replacing these values in the distance formula

D =\sqrt{(-9-2))^2+(4-(-1))^2}

D =\sqrt{(-11)^2+(5)^2}

D =\sqrt{121+25}

D =\sqrt{146}

D= 12.083

Hence the distance is 12.083 units

3 0
2 years ago
Aimee is flying a plane for the first time! The air traffic controller tells her to fly at 500 m above the ground or higher. Wri
DanielleElmas [232]
We are given in this item that the elevation required for flying a plane is 500 m or higher. This concept can also be expressed as, ''elevation must be at least 500m''. Further, this can be expressed as,
                     ''elevation should be greater than or equal to 500m''

If this is to be translated to the mathematical inequality, the answer would be,
                               h ≥ 500 m
4 0
2 years ago
Other questions:
  • Cory recorded the following values when he measured the length of leaves from one tree. Length in centimeters: 8, 11, 9, 10, 10,
    13·2 answers
  • "Which pairs of angles in the figure below are vertical angles? Check all that apply.
    11·2 answers
  • What is the 12th term in the sequence? Note: Use the explicit rule. an=−16+2n Enter your answer in the box.
    10·1 answer
  • In triangle ABC, AB measures 25 cm and AC measures 35 cm. The inequality &lt; s &lt; represents the possible third side length o
    7·2 answers
  • Which equation represents the line that passes through (–6, 7) and (–3, 6)? y = –y equals negative StartFraction one-third EndFr
    11·2 answers
  • It takes 40 cents worth of meat to make sandwiches. What is the cost of the meat for 20 sandwiches?
    11·1 answer
  • Let p, q, and r be the propositions p: You get an A on the final exam. q: You do every exercise in this book. r: You get an A in
    14·1 answer
  • write three sentences contrasting the federalist and anti-federalist viewpoints on separation of powers in the constitution. def
    9·2 answers
  • Lanie's Room Is In The Shape Of A Parallelogram. The Floor Of Her Room Is Shown And Has An Area Of 108 Square Feet. Lanie Has A
    11·1 answer
  • Elijah can spend up to $23 on groceries. She wants to buy 3 pounds of tomatoes, 4 pounds of oranges, and x pounds of lean ground
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!