Using Venn probabilities, it is found that 240 students are enrolled in both classes.
<h3>Venn probabilities:</h3>
The events are:
- Event A: A student is enrolled in band.
- Event B: A student is enrolled in chorus.
The supposed percentages, which also represents the probabilities involving a single student, are:
- 50% of the students involved in the band, hence
.
- 40% of the students involved in the chorus, hence
.
- 30% involved in neither, hence
.
The percentage involved in both is:
Hence:
Then, out of 1200 students:
240 students are enrolled in both classes.
To learn more about Venn probabilities, you can take a look at brainly.com/question/25698611
Answer:
18
Step-by-step explanation:
15 + Percentage increase =
15 + (20% × 15) =
15 + 20% × 15 =
(1 + 20%) × 15 =
(100% + 20%) × 15 =
120% × 15 =
120 ÷ 100 × 15 =
120 × 15 ÷ 100 =
1,800 ÷ 100 =
18
Answer:
21cm, 12cm
Step-by-step explanation:
width=x cm
length=2x-3 cm
area= 252cm²
l*b= 252 cm²
(2x-3)(x)=252
2x²-3x= 252
this is how I did it
we need to find the nearest square of the number (it should be lesser than the area)
that is 225, whose square root is 15.
since there is a coefficient to the x², the value of x would be calculate like this 15- (2+1)= 15-3 = 12
x= 12
we can verify it too,
2*(12)² - 3*12=252
288-36=252
252=252
therefore width is 12 cm and width is 2*12-3= 24-3= 21 cm
verify;
21*12= 252
252=252
hence the dimensions are 12 am (width) and 21 cm(length).
Answer:
15.89
Step-by-step explanation:
You would divide 149 by 9 and get 15.88.However this 8 will keep repeating so you have to round it up.
Answer:
it is likely that 80 of the total boxes produced that day had more than 15.5 ounces of cereal.
Step-by-step explanation:
the answer is basically c.
