36 of them did not have an umbrella because out of 11 people, 4 did not bring an umbrella.
The answer is 3.42 x 10^6 because we moved the decimal 6 places to the left. Hope this helps:)
~Ash
Answer:
20
Step-by-step explanation:
50 - 20 = 30
30 ÷ 1.50 = 20
Answer:
Let us assume the total number of students surveyed = x
Then
Number of students preferring red = x/4
Number of students preferring blue = x/8
Then
Number of students remaining = x - [(x/4) + (x/8)]
=x - [(2x + x)/8)
= x - (3x/8)
= (8x - 3x)/8
= 5x/8
Number of students preferring the color green = (3/5) * (5x/8)
= 3x/8
We also know that the total number of students preferring the color green is 15
So
3x/8 = 15
3x = 15 * 8
x = (15 * 8)/3
= 5 * 8
= 40
So in total 40 students were surveyed. I hope the procedure is clear to you.
Step-by-step explanation: