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
Hatshy [7]
3 years ago
13

James buys 8 packages, each 20 mechanical pencils, and passes out 1/4 of then to his friends. Write and evaluate an expression t

o find out how many mechanical pencils James has left.
Mathematics
1 answer:
Usimov [2.4K]3 years ago
3 0

Answer:

the answer is 131 because if you multiply 20 by 8 is 190 then you divide 1/4 by 190 and you get 131

Step-by-step explanation:

You might be interested in
Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 22 days and
Alika [10]

Answer:

25.5 days

Step-by-step explanation:

Mean number of days (μ) = 22 days

Standard deviation (σ) = 6 days

Z-score for the 72nd percentile (according to tabulated values) = 0.583

The z-score for any number of days, X, is determined by:

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

The value of X that is greater than 72% of the trial times is:

0.583=\frac{X-22}{6}\\ X=25.5\ days

Therefore, 72% of all of these types of trials are completed within 25.5 days.

6 0
3 years ago
4) What is the unit rate? Explain what the unit rate means in this context.
hram777 [196]

Answer:

Unit rate in most contexts is how much a item cost if it is sold as a single serving(unit)

If you are trying to have a problem solved or it doesnt invovle price, please include the problem as well

8 0
3 years ago
The probability that Colin buys a sandwich is 0.3.
garik1379 [7]

Answer:

0.21

Step-by-step explanation:

For independent probalities, the chance of both things happening is their product. 0.3 * 0.7 = 0.21

7 0
3 years ago
Let sin(45°)=0.7071.Enter the angle measure (μ), in degrees for cos(μ)=−0.7071.
Alenkasestr [34]

Given :

Let sin(45°)=0.7071.

To Find :

The angle measure (μ), in degrees for cos(μ)=−0.7071 and value equivalent to 360n + , where n is an integer .

Solution :

We know , value of sin x and cos x is same at x = 45° .

Now , cos (-x) = cos(90°+x)

Therefore , μ in given question is :

μ =90°+45°

μ=135°

So , for angle of type 360°n + :

μ = 360°n + 135° .

Hence , this is the required solution .

5 0
3 years ago
18 pink flowers and 27 violet flowers what is the same number of each color​
Digiron [165]

Answer:

9 just find the Greatest common multiple

7 0
3 years ago
Other questions:
  • How many students measured the length of their shoe size
    12·1 answer
  • GEOMETRY PLEASE HELP ME URGENT
    6·1 answer
  • What is the value of the expression: x - 3y
    5·1 answer
  • Match the vocabulary word with the correct definition.
    6·2 answers
  • the giant swallowtail is the largest butterfly in the united states . its wingspan can be as large as 16 centimeters. what is th
    9·2 answers
  • Luis makes 3 free throws out of every 7 shots how many free throws will he make if he shoots 21 times
    13·1 answer
  • I'LL GIVE YOU 35 POINTSSS HELP MEEE I NEED ASSISTANCE
    7·1 answer
  • Walter needs new grass in the circular pen for his chickens. The pen has 308 feet of fencing. What is the area of the pen?
    12·1 answer
  • Is it possible to form a triangle with the given side lengths? 15 yd,16yd,30yd
    13·2 answers
  • |x + 5| = -3<br> How do I do this ?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!