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Mathematics 15 Online
OpenStudy (anonymous):

Word problem!! help please!! The school cafeteria has found out that they go through 7 sandwiches for every 4 tickets they sell to the students. Today they have 679 sandwiches available. How many lunch tickets can they sell today?

OpenStudy (anonymous):

679/7=97. 97 Tickets.

OpenStudy (anonymous):

it said that was incorrect ..

OpenStudy (anonymous):

I could use a sammich.

OpenStudy (anonymous):

Maybe 97x4 388 tickets?

OpenStudy (anonymous):

that was right!!

OpenStudy (anonymous):

Petrolyn oil is a combination of natural oil and synthetic oil - 4 parts natural oil for every 5 parts of synthetic oil. How many liters of natural oil are contained in 891 liters of Petrolyn oil?

OpenStudy (anonymous):

891/9 = 99. 99x4=396 396 liters of natural oil, and 495 liters of synthetic.

OpenStudy (anonymous):

yeppp! :)

OpenStudy (anonymous):

All marble bags from Mary's Marble Company have 5 green marbles for every 6 yellow marbles. If a bag has 40 green marbles, how many yellow marbles are there in the bag?

OpenStudy (anonymous):

should be 48 green marbles.

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