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
Stels [109]
3 years ago
15

A group of 20 students includes 5 students in sixth grade, 8 students in seventh grade, and 7 students in eighth grade. Each stu

dent name and grade are written on an index card and place into a bag. A card is randomly selected from the bag. What is the probability that a seventh grader name will be selected, P (seventh grader)? Enter the correct answer, as a fraction, a decimal, and a percent.
Mathematics
2 answers:
inessss [21]3 years ago
7 0

Answer:

2/5; 0.4; 40%

Step-by-step explanation:

Probability is going to be the number of seventh graders divided by the total number of students.

In this case, there are 8 seventh graders and 20 students. So, set up your fraction to be 8/20. This can be simplified to 2/5.

Now, you can divide 2/5 using long division or use your calculator, if permitted, to convert 2/5 to a decimal. You will get 0.4.

You can also figure this out by thinking that 2/5 = 4/10, so 4/10 = 0.4.

Now for percents, just move the decimal point of a decimal number two spaces to the right. If we have 0.40, we move the decimal point to the right twice to get 40, and add the percent sign to get 40%.

bulgar [2K]3 years ago
7 0

Answer:

2/5, 0.4, 40%

Step-by-step explanation:

\frac{8}{20}  =  \frac{2}{5}  \\  \frac{2}{5}  = 0.4 \\ 0.4 = 40\%

You might be interested in
7xy + 8z - 2z + 12xy + 10z
cestrela7 [59]

Answer:

19xy + 16z

Step-by-step explanation:

combine like terms

7xy +1 2xy= 19xy

8z - 2z + 10z = 16z

7 0
3 years ago
I need friends this is my instragram german_escamilla57​
AlladinOne [14]

Answer:

bbbbbbbeeeeeeeeettttttttt

6 0
2 years ago
Read 2 more answers
How many symmetry does maple leaf have
Travka [436]

Only one Line.........

6 0
2 years ago
PLEASE EXPALIN :))))) ( THERES A PIC)
Bond [772]
Altitudes make right angles so it is C
3 0
3 years ago
Is it necessary to do all of the calculations to determine the sign of the product? Why or why not?
Aleksandr-060686 [28]

Answer:

= (- 475)

Step-by-step explanation:

Given:

(-5) × (-5) × ... × (-5) = (-5)95

Find:

Sign of the product

Computation:

(-5) × (-5) × ... × (-5) = (-5)95

= (- 475)

No, it is not compulsory to do all calculation to find sigh of product

Negative number × odd time = Negative number

Negative number × even time = Positive number number

6 0
3 years ago
Other questions:
  • 1) A rectangular carpet has a perimeter of 288 inches. The length of the carpet is 96 inches more than the
    13·1 answer
  • What is the slope of the line that goes through the points (12,-18) (-15,-18)
    15·1 answer
  • All integers are rational numbers true or false please explain
    7·1 answer
  • Three hens can lay 3 eggs in 3 days.In how many days can 7 hens lay 7 eggs?
    7·2 answers
  • Which geometric solids would model the tent?
    7·1 answer
  • Can someone help me
    11·1 answer
  • A polling firm wants to use a one-sample z interval to estimate what proportion of voters in a country plan on
    6·1 answer
  • What is the answer??? Only if you know please i will report you no games only if you know it please it’s geometry
    14·1 answer
  • The length of a side of a square is 32<br>cm find the area​
    7·1 answer
  • If a 32 ft. tall tree casts an 8 ft. shadow , how long of a shadow dc 6 ft. tall man have?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!