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
vitfil [10]
3 years ago
8

By selling a stool for rupees 67.50,a carpenter loses 10%.how much percent would he gain or lose by selling it for rupees 82.50.

?
Mathematics
1 answer:
valentina_108 [34]3 years ago
8 0
Let the actual value of the stool be x.

So if the carpenter sells the stool x rupees he neither loses, now wins anything.

67.50 is the value x - 10% of x, that is:

67.50=x-0.1x
67.50=0.9x

x=67.50/0.9=75      (rupees) is the actual value of the stool.


Selling the stool for 82.50 rupees, the carpenter clearly would make a profit, say of y% of that actual value, that is y%*75.

So using the same method:

82.50=75+y%*75

y%*75=82.50-75=7.5

we can make the calculations, but clearly 7.5 is 10% of 75


Answer: 10% gain.


You might be interested in
Newborn babies: A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights
Fed [463]

Answer:

a) 615

b) 715

c) 344

Step-by-step explanation:

According to the Question,

  • Given that,  A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 732 babies born in New York. The mean weight was 3311 grams with a standard deviation of 860 grams

  • Since the distribution is approximately bell-shaped, we can use the normal distribution and calculate the Z scores for each scenario.

Z = (x - mean)/standard deviation

Now,

For x = 4171,  Z = (4171 - 3311)/860 = 1  

  • P(Z < 1) using Z table for areas for the standard normal distribution, you will get 0.8413.

Next, multiply that by the sample size of 732.

  • Therefore 732(0.8413) = 615.8316, so approximately 615 will weigh less than 4171  

 

  • For part b, use the same method except x is now 1591.    

Z = (1581 - 3311)/860 = -2    

  • P(Z > -2) , using the Z table is 1 - 0.0228 = 0.9772 . Now 732(0.9772) = 715.3104, so approximately 715 will weigh more than 1591.

 

  • For part c, we now need to get two Z scores, one for 3311 and another for 5031.

Z1 = (3311 - 3311)/860 = 0

Z2 = (5031 - 3311)/860= 2  

P(0 ≤ Z ≤ 2) = 0.9772 - 0.5000 = 0.4772

  approximately 47% fall between 0 and 1 standard deviation, so take 0.47 times 732 ⇒ 732×0.47 = 344.

5 0
2 years ago
Determine the number of outcomes in the event. Decide whether the event is a simple event or not. A computer is used to select r
Oliga [24]

The probability of selecting a number greater than 8 will be p=\dfrac{1}{9}.

<h3>What is probability?</h3>

Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

The number of outcomes = { 1,2,3,4,5,6,7,8,9 } = Counts = 9

Favourable outcomes = { 9 } = counts = 1

The probability will be given as:-

P = \dfrac{1}{9}

Therefore the probability of selecting a number greater than 8 will be p=\dfrac{1}{9}.

To know more about probability follow

brainly.com/question/24756209

#SPJ1

7 0
1 year ago
Do you guys ever just sit there and realize how not ok you are?
ludmilkaskok [199]
Are you ok? do you want to talk about it babe?
6 0
2 years ago
Read 2 more answers
PLEASE HELP I need this like rn!!!
butalik [34]

Answer:

?

Step-by-step explanation:

360 is going to be what you have to end up with. Add all of the numbers you have then subtract 360 and whatever you get that's your anserw

3 0
2 years ago
Which of the following systems of linear inequalities is represented by the solution graphed below?
sattari [20]
Answer is A, y us smaller/equal to 2 and y is smaller/equal to X
5 0
3 years ago
Other questions:
  • Which answer correctly estimates the quotient of 8.07 ÷ 0.87?
    5·2 answers
  • Name each solid below find the volume and surface area​
    10·2 answers
  • PLEASE HELP ASAP!! CORRECT ANSWER ONLY PLEASE!!
    10·2 answers
  • 30 points + brainliest for correct answer! If a triangle has sides X, 4.0, and 8.0, what is the range of possible sizes for side
    15·2 answers
  • Chris sold red and blue pens for a.
    10·2 answers
  • CAN 10/12 BE REPLACED WITH 1/2 WHILE ESTIMATING? YES OR NO
    13·1 answer
  • When solving the equation, which is the best first step to begin to simplify the equation?
    13·2 answers
  • By what number should you multiply the 1st equation to cancel the x's using the elimination method?
    6·1 answer
  • Suppose you have a bag of colored plastic disks and you choose one without looking. The probability the disk you choose is yello
    6·1 answer
  • What is 61,734 divided by 46
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!