There were 90 runners to start a race. in the first half of the race, 1/3 of them dropped out. in the second half of the race, 3/5 the remaining runners dropped out. how many runners finished the race?

24

Step-by-step explanation:

Start with 90 runners.

1/3 dropped out.

1/3 of 90 = 1/3 * 90 = 30

30 runners dropped out.

90 - 30 = 60

Now there are 60 runners.

3/5 of the remaining runners dropped out.

3/5 of 60 = 3/5 * 60 = 36

36 runners dropped out.

60 - 36 = 24

24 runners finished the race.

24 runners

Step-by-step explanation:

1/3 of 90 dropped =  30 dropped

90-30=60

Second half  60 runners

3/5 of 60 dropped  = 36 dropped

36 runners dropped in second half

60-36=24

24 runners finished  the race

7200

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6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.