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3 years ago

What is the probability that a randomly selected student is a Junior who takes the bus

Mathematics

1 answer:

inysia [295]3 years ago

6 0

Answer:1/5

Step-by-step explanation:

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Jan has a recipe for bread . She uses 2/3 of flour and 1/3 cup of chopped onion. Which ingredient does she use moré ?

ElenaW [278]

<span>Jan has recipe for bread. She uses 2/3 of flour and 1/3 cup of chopped onion. Let us find out which of the 2 ingredients did Jan used more.
We have the following given data:
=> 2/3 cup of flour
=> 1/3 cup of chopped onion.
Let’s first convert this to decimal to know which ingredients is used more.
=> 2/3 = 2 / 3 = 0.67
=> 1/3 = 1 / 3 = 0.33
Thus, more cups of flour is used compare to the chopped onions.</span>

5 0

3 years ago

What is the area of an equilateral triangle with sides of length 20?

Anarel [89]

Answer:

173.2

Step-by-step explanation:

area of equilateral triangle = √3 / 4 l^2

so area =173.2

6 0

3 years ago

ASAP! I'll mark you as Branliest! Gina plotted the points (-3,4), (4,4), (-3,-2), and (4,-2), on the coordinate plane.

neonofarm [45]

Answer:

the reson why is becuase the length and width are equal

Step-by-step explanation:

8 0

3 years ago

Ezra made cookies for a bake sale. He made 13 cookies in the shape of a dog and 54 cookies in other shapes. What is the probabil

Radda [10]

Answer:

Approximately 19.4%

Step-by-step explanation:

Co. Dogs: 13

Co. Others: 54

13+54=Total Co.

=67.

Co. Dogs: 13/67.

App. 19.4% (For 13 Co.)

App. 1.49% (For 1 Co.)

4 0

3 years ago

The distribution of scores on a recent test closely followed a Normal Distribution with a mean of 22 points and a standard devia

maksim [4K]

6.68% of the students scored at least 19 points on this test while the 85 percentile has a test score of 24.08 points

The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:

$z=\frac{x-\mu}{\sigma} \\\\where\ \mu=mean.\sigma=standard\ deviation, x=raw\ score\\\\Given\ that\ mean(\mu)=22,standard \ deviation (\sigma)=2\\\\For\ x>19:\\\\z=\frac{22-19}{2}=1.5$

P(x > 19) = P(z > 1.5) = 1 - P(z < 1.5) = 1 - 0.9332 = 0.0668

6.68% of the students scored at least 19 points on this test

b) 85 percentile corresponds to a z score of 1.04

$z=\frac{x-\mu}{\sigma}\\\\1.04 =\frac{x-22}{2} \\\\2.08=x-22\\\\x=24.08$

The 85 percentile has a test score of 24.08

Find out more at: brainly.com/question/25012216

7 0

3 years ago