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
Crazy boy [7]
3 years ago
5

A math class has 3 girls and 9 boys in the seventh grade and 7 girls and 3 boys in the eighth grade. The teacher randomly select

s a seventh grader and an
eighth grader from the class for competition. What is the probability that the students she selects are both girls?
Write your answer as a fraction in simplest form.
Mathematics
1 answer:
vladimir1956 [14]3 years ago
8 0

Answer:

7/40

Step-by-step explanation:

There are 3 girls+9 boys = 12 students in the 7th grade

P (girl in 7th grade) = girls/ total

                                = 3/12 = 1/4

There are 7 girls+3 boys = 10 students in the 8th grade

P (girl in 8th grade) = girls/ total

                                = 7/10

P(7th grade girl, 8th grade girl) = 1/4 * 7/10 = 7/40

You might be interested in
How many yards are in 150 feet?
aliya0001 [1]
Each yard is 3 feet, so 150 / 3(a yard) = 50 (yards)
4 0
3 years ago
Read 2 more answers
921 divided by 2 what’d the remainder
s2008m [1.1K]
921÷ 2 = 460.5
which means the remainder is 1
So; the answer is 1
8 0
3 years ago
Read 2 more answers
How do I solve 6a + 5a = −11
SashulF [63]

Answer:

a = - 1

Step-by-step explanation:

Step 1:

6a + 5a = - 11        Equation

Step 2:

11a = - 11         Combine Like Terms

Step 3:

a = - 11 ÷ 11       Divide

Answer:

a = - 1

Hope This Helps :)

5 0
3 years ago
Read 2 more answers
Who came up with y=mx+b
allsm [11]

Answer:Renee Descartes was the person that invented slope of a line

Step-by-step explanation:Renee Descartes was the person that invented slope of a line

6 0
3 years ago
Pleeeeeeassesesesaerxvdrcgcdrcxf help me
Aleksandr-060686 [28]

Answer:

The solution is r <u>></u> 7.

Closed circle at 7 with an arrow pointing to the right

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • The erea of a square is given by x2, where x is the length of one side. Mary's original garden was in the shape of a square. She
    8·1 answer
  • 11-1/2y=3+6x<br> solve for y
    13·1 answer
  • (Extra points)
    9·1 answer
  • Limit yayınları 2. deneme cevapları
    15·1 answer
  • The speed of a Garden-Snail is 50 meters per hour and that of the Cheetah is 120 kilome-
    5·2 answers
  • Pleaseeeee helppppp I’ll mark u brainlist no links please
    10·1 answer
  • Express in the form <br> 1<br> :<br> n<br> .<br> Give <br> n<br> as a decimal.<br> 4<br> :<br> 6
    9·1 answer
  • A cyclist has rode his bike 174 miles in 3 hours. If he continues at this rate, how long would it take him to complete another 4
    13·1 answer
  • Pls help me and fast!<br><br> thank you
    6·1 answer
  • Expand the brackets and simplify: 2(5x-y)-3(3x-y)​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!