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
yanalaym [24]
2 years ago
11

Dana surveyed students in her class. She found that 8 earned an A, 6 earned a B, 4 earned a C, and 2 earned a D on the last scie

nce test. If she randomly surveys one more student from the class, what is the experimental probability that the student would have earned an A on the test.
Mathematics
2 answers:
Over [174]2 years ago
8 0

Answer:

2/5

Step-by-step explanation:

Dana surveyed 20 students in total and out of those 20 only 8 got an A

so:

now if you simplify it  and if you simplify it again:

or 0.4 in decimal

lozanna [386]2 years ago
7 0

Answer:

0.4 or 2/5

Step-by-step explanation:

Dana surveyed 20 students in total and out of those 20 only 8 got an A

so:

\frac{8}{20} now if you simplify it \frac{4}{10} and if you simplify it again:

\frac{2}{5} or 0.4 in decimal

You might be interested in
What is the slope of a line that is perpendicular to the line whose equation is 2y = 3x - 1?
alexandr1967 [171]

Answer:

The slope of the line is -\frac{2}{3}

Step-by-step explanation:

For any line y=mx+b, a line that is perpendicular to it is y_\perp =-\frac{1}{m} x+b.

Therefore the slope of the perpendicular line is -\frac{1}{m}.

For our case y=\frac{3}{2}x-\frac{1}{2} therefore the slope of the prependicular is the reciprocal of \frac{3}{2} multiplied by -1.

\therefore\:slope=-\frac{2}{3}.

4 0
3 years ago
In a certain​ lottery, an urn contains balls numbered 1 to 34. from this​ urn, 6 balls are chosen​ randomly, without replacement
Anarel [89]

\displaystyle |\Omega|=\binom{34}{6}=\dfrac{34!}{6!28!}=\dfrac{29\cdot30\cdot31\cdot32\cdot33\cdot34}{2\cdot3\cdot4\cdot5\cdot6}=1344904\\ |A|=1\\\\ P(A)=\dfrac{1}{1344904}

7 0
3 years ago
My sister has trouble once again
andrey2020 [161]

Answer:

Thats siblings for you

Step-by-step explanation:

3 0
2 years ago
Note: Your teacher will grade your response to ensure that you receive proper credit for your answer. The cost of a telephone ca
Mnenie [13.5K]

Answer:

0.75+0.25t

Step-by-step explanation:

simple algebra

5 0
3 years ago
Read 2 more answers
A family has two cars. the first car has a fuel efficiency of 40 miles per gallon of gas and the second has a fuel efficiency of
Aliun [14]
Let x and y represent the numbers of gallons used by the 40 mpg and 35 mpg cars, respectively.
.. x +y = 40 . . . . . . . . . . .total consumption is 40 gallons
.. 40x +35y = 1525 . . . . total miles driven = 1525

Multiply the first equation by 40 and subtract the second.
.. 40(x +y) -(40x +35y) = 40(40) -(1525)
.. 5y = 75
.. y = 15
.. x = 40 -15 = 25

The 40 mpg car consumed 25 gallons.
The 35 mpg car consumed 15 gallons.
7 0
3 years ago
Other questions:
  • Asap please x÷7=11÷15help
    11·2 answers
  • What is 17pi/4 in decimal form nearest the thousandth
    11·1 answer
  • Mitchell deposited $651.37 in a savings account that earns 3.9% simple interest what is Mitchell's account balance after 15 year
    7·1 answer
  • Consider a drug testing company that provides a test for marijuana usage. Among 300 tested​ subjects, results from 30 subjects w
    12·1 answer
  • 2.1×10 to the power of 3 in standard form
    8·2 answers
  • If Jeannie eats 1,840 calories a day , how many calories will she have eaten after 182 days?
    5·2 answers
  • What is the definition of a mean?
    9·2 answers
  • Geometric proofs of segments
    14·1 answer
  • The number of deer in Georgia increased by 2,300 last year. Which of the situations below, when combined with that increase, wil
    13·1 answer
  • What type of triangle center is shown as point C in the figure?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!