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
elena-s [515]
3 years ago
14

what a third of a number is subtracted from ahalf of the same number, 60 is the result. Find the number.

Mathematics
1 answer:
-BARSIC- [3]3 years ago
6 0

Let's call the number n.


Based on the problem, we can create the following equation:

\dfrac{1}{2} n - \dfrac{1}{3} n = 60


Now, let's solve for n:

\dfrac{1}{2} n - \dfrac{1}{3} n = 60

  • Set up

n(\dfrac{1}{2} - \dfrac{1}{3}) = 60

  • Apply the Distributive Property

\dfrac{1}{6} n = 60

  • Combine like terms

n = 360

  • Multiply both sides of the equation by 6

The number is 360.

You might be interested in
What is the next number in this pattern?<br><br> 0, 3, 15, 63
Over [174]
The next number is 255.
6 0
3 years ago
Suppose that weight of adolescents is being studied by a health organization and that the accompanying tables describes the prob
svet-max [94.6K]

Answer:

<em>hello your question lacks some information attached below is the complete question</em>

answer : NO

Step-by-step explanation:

Determine the probability of not selecting an obese subject in 3 trials

= P ( not obese in 3 randomly selected ) = ( 1 - 0.111 )^3

= 0.703

The probability > 0.05

hence it is insignificant therefore the answer is NO

6 0
3 years ago
According to a study done by the Gallup organization, the proportion of Americans who are satisfied with the way things are goin
UkoKoshka [18]

Answer:

21.77% probability that the proportion who are satisfied with the way that things are going in their life exceeds 0.85

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

For proportions p in a sample of size n, we have that \mu = p, \sigma = \sqrt{\frac{p(1 - p)}{n}}

In this problem:

\mu = 0.82, \sigma = \sqrt{\frac{0.82*0.18}{100}} = 0.0394

In a sample of 100 Americans, what is the probability that the proportion who are satisfied with the way that things are going in their life exceeds 0.85

This is 1 subtracted by the pvalue of Z when X = 0.85. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{0.85 - 0.82}{0.0384}

Z = 0.78

Z = 0.78 has a pvalue of 0.7823

1 - 0.7823 = 0.2177

21.77% probability that the proportion who are satisfied with the way that things are going in their life exceeds 0.85

5 0
3 years ago
If two angles of measure (x + 3)º and (2x – 9)º
nydimaria [60]

Step-by-step explanation:

(X+3)(2x_9)

3x+12_12=90_12

3x=90_12

3x=78

X=26°

8 0
3 years ago
How do you think a dolphin jumping out of water relates to a quadratic?
Murrr4er [49]
Sawyer and Emily is so cute I love
8 0
3 years ago
Other questions:
  • You start an account with $500 and an interest rate of 6% compounded yearly. How much is in the account after 3 years?
    9·1 answer
  • Pls answer. will mark as branliest
    6·2 answers
  • In a certain classroom, the ratio of boys to girls is 2 to 1. If there are 39 students in the classroom, how many are boys?
    12·1 answer
  • (a2 − 6) and (a2 + 4) are the factors of i need help quickly
    6·1 answer
  • Match each inequality to the number line that represents its solution
    11·1 answer
  • Find the angle between the vectors ????=????+???? and ????=−????+????. (Give an exact answer. Use symbolic notation and fraction
    15·1 answer
  • Need help with the answer​
    12·1 answer
  • Help please for gods sake:(
    10·1 answer
  • Is 3/4 closer to 0 or 1?
    5·1 answer
  • A number cube has edges of 8 centimeters. What is the surface area of the number cube?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!