Mary and jane are trying to set up their marmalade selling business. they started off by peeling the oranges. mary peels 8 oranges in 10 minutes while jane peels 3 oranges in 5 minutes. if they need to peel 500 oranges for their first batch of marmalade, how long (in hours) will it take them to finish peeling? (round off to nearest hr)

6.0 hours

Step-by-step explanation:

1 hour is the same as 60 minutes.

"Mary peels 8 oranges in 10 minutes"

1 hour = 60 minutes = 6 * 10 minutes

In 1 hour, she peels 6 times as many oranges, so Mary peels 48 oranges in 1 hour.

"Jane peels 3 oranges in 5 minutes"

1 hour = 60 minutes = 12 * 5 minutes

In 1 hour, she peels 12 times as many oranges, so Jane peels 36 oranges in 1 hour.

Combined, the peel 48 + 36 = 84 oranges in 1 hour.

(500 oranges)/(84 oranges/hour) = 5.952 hours

6.0 hours

180

step-by-step explanation:

12-2=10

20-2=18

18x10=180