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
podryga [215]
3 years ago
14

Students in a middle school must choose to take either band or chorus. in a given academic year, 60% of the pupils choose band a

nd the rest choose chorus. 30% of the students who are taking band are girls, and 70% who are taking chorus are girls. if a student is randomly selected from this academic year, what is the probability that it is a boy?
a.0.46
b.0.49
c.0.50
d.0.54
Mathematics
1 answer:
Alja [10]3 years ago
8 0
60% choose band......40% choose chorus

30% who are taking band are girls......30% of 60% is (0.3 * 0.6) = 0.18 or 18%..so 18% are girls.
70% who take chorus are girls....70% of 40% is (0.7 * 0.4) = 0.28 or 28%...so 28% are girls.

18% + 28%  = 46%....so a total of 46% taking band and chorus are girls.....so that leaves (100% - 46%) = 54% ( or 0.54) are boys

You might be interested in
What is a decimal in standard form: <br>12 and six hundredths <br><br>forty-six ten-thousandths
aev [14]
The decimal in standard form for 12 and six hundredths is 12.06
4 0
3 years ago
Is something is less than 5 , do i include 5
notsponge [240]

Answer:

No.

Step-by-step explanation:

If something is <em>less</em> than 5, no, however if something is less than or equal to (≤ sign), then yes.

5 0
2 years ago
Read 2 more answers
Suppose that 24 inches of wire costs 96 cents.
Alexxx [7]
At the same rate, 31 inches of wire will cost 124 cents.

3 0
2 years ago
Ok really need hellp hear
Nuetrik [128]

Answer:

2/3 is the answer..

Step-by-step explanation:

becaue 2 holes then 2/3s is not filled trust me!!! plz give brainliest and a thanks!!!!

6 0
3 years ago
Which number is rational?
zmey [24]

Answer:

root 16

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Answer so I can past one of my test
    9·2 answers
  • Question 1
    13·1 answer
  • A bird leaves its nest and travels 20 miles per hour downwind for x x hours. On the return trip, the bird travels 4 miles per ho
    9·1 answer
  • Does the amount of points on the line of best fit matter?
    10·1 answer
  • In a bag of small balls 1/4 are green, 1/8 are blue, 1/12 are yellow and the remaining 26 white. How many balls are blue?
    10·1 answer
  • Find c to two decimal places and find the measure of angle B. Angle A = 58°, Side AC = 5, Side BC = 8, Find side C. Angle C is 9
    10·1 answer
  • How do I do this problem
    9·1 answer
  • Amanda is 12 years old she has two sevens time as old as her father how many years ago was her father four times as old as Amand
    6·1 answer
  • 1,275÷588 rounded pls i need some help​
    13·1 answer
  • PLEASE HELP ME FIND THE CORDINATES FOR THESE GRAPHSSS PLEASE ILL GIVE YOU BRAINLIEST AND 25 POINTS
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!