Question

90% of students did their assignment . Of the student that did the assignment, 30% turned it in on time. What percent of all students did their assignment and turned it in on time? please walk me through this..

Answer 1

90 did, 10 didn't
30 did on time,

(0.9) did, (0.1) didn't
(0.3) of (0.9) did on time
0.27 did on time of the ones that did
(0.27)(1) = 27% of students did it on time.

Answer 2

?

Answer 3

kc no comprendo where the 0.27 came from

Answer 4

?

Answer 5

0.3 * 0.9

Answer 6

i see that but y would we do tht didi?

Answer 7

Of the student that did the assignment, 30% turned it in on time

How many did the assignment ?

Answer 8

?

Answer 9

HOw many did the assignment ?

Answer 10

oo! i see now!!

Answer 11

i see the the reason how tht came ah yes stupid chotti

Answer 12

90% did assignment (i.e 0.9 ) 30% (0.3)of 90% did the assignment ( i.e 0.3 * 0.9)

Okay Chotti!

Answer 13

i need help on a another one..

Answer 14

Post i'll try

Answer 15

Ms.Thomas is pouring water into her fish tank at 500 milliliters per second. The fish tank can hold 24 liters of water and it already contains 4 liters. How long will it take Ms.Thomas to fill up the rest of the tank? 1000 milliliters= 1 liter

Answer 16

i think it is 40 seconds from how i solved it

Answer 17

but now i think it is 10 secs

Answer 18

nope im good with 40 seconds

Answer 19

am i right?

Answer 20

Yeah i'll go with 40

Answer 21

because
500ml -->1s
0.5l--> 1s
1 l --> 1/0.5s
24-4 l =20 l ---> 1/0.5 * 20 =40 s