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
Vsevolod [243]
2 years ago
7

The incomplete table above summarizes the number of left-handed students and right-handed students by gender for the eighth grad

e students at Keisel Middle School. There are 5 times as many right-handed female students as there are left-handed female students, and there are 9 times as many right-handed male students as there are left-handed male students. if there is a total of 18 left-handed students and 122 right-handed students in the school, which of the following is closest to the probability that a right-handed student selected at random is female? (Note: Assume that none of the eighth-grade students are both right-handed and left-handed.)
A) 0.410
B) 0.357
C) 0.333
D) 0.250

Mathematics
1 answer:
creativ13 [48]2 years ago
6 0

Answer:

The answer is A

Step-by-step explanation:

x+y=18

5x+9y=122

When you solve this system of equations, you get x=10 and y=8. Thus, 5*10, or 50, of the 122 right-handed students are female. Therefore, the probability that a right-handed student selected at random is female is

50/122

which to the nearest thousandth is 0.410.

You might be interested in
(please help!!!) David hikes 2.25 miles in 0.5 hr. What is his rate in miles per hour? At this rate, how long will it take him t
ki77a [65]
His rate is 4.5 miles per hour. It would take him 4 hours to hike 18 miles. He would have traveled 31.5 miles in 7 hours.
8 0
3 years ago
What is your favorite color of the alphabet true or false???
valina [46]
Trueeeeee i guess oop
7 0
3 years ago
-3(n + 5) = 12<br> solve^
UNO [17]

Answer:

n= 1

Step-by-step explanation:

-3n + 15 =12

-15. -15

-3n= - 3

÷-3 ÷-3

n= 1

5 0
3 years ago
Read 2 more answers
Please help I will mark Brainly
Sloan [31]

Answer:

The answer to number 1 is 10. The answer to number 2 is 4-6, inclusive.


7 0
3 years ago
The first descended to 86 feet below the cave opening. The second descended 22 feet less then the first. What expression can be
pogonyaev
1st guy minus the 2nd is how far the 2nd made it
86-22=64 ft
4 0
3 years ago
Other questions:
  • Could someone pkease help. i am not sure if i have the correct answer, thanks
    14·1 answer
  • There were 3,905 more hits on the schools website in January than February. February had 9,854 hits. How many hits did the schoo
    11·1 answer
  • The average of 3 numbers is 22, and the smallest of these numbers is 2. what is the value of the other two numbers if they are e
    9·1 answer
  • Solve ⁴⁄₉ minus ⁴⁄₁₀
    6·2 answers
  • 9. Plot the points A (-2,3), B(2,-3), C(2,3) ,D(-2,3) join the points and find the distance between each point.
    10·1 answer
  • Find the length of the third side. If necessary, round to the nearest tenth.
    12·2 answers
  • Evaluate. 4 1/8 – 1 3/4
    9·2 answers
  • Solve: 2.40X=40 to find out how many cookies that cost $2.40 each can be bought with $40.
    15·1 answer
  • Clue #1 the total number of unicycles, bicycles and tricycles is 38. Clue #2 There are more tricycles than bicycles and unicycle
    8·1 answer
  • What flaws of the Abbasids caliphs contributed to their downfall?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!