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Mathematics 8 Online
OpenStudy (ny,ny):

HELP an orchestra consists of string instruments and wind instruments in ratio of 9 to 4. There are 91 string and wind instruments in the orchestra. How many string instruments are there? How many wind instruments?

OpenStudy (anonymous):

Which instrument do you think will be the most?

OpenStudy (ny,ny):

string

OpenStudy (ny,ny):

more string instruments than to wind

OpenStudy (anonymous):

Great start, but why?

OpenStudy (ny,ny):

it says ratio of 9 to 4

OpenStudy (anonymous):

So if there was a total of 13 instruments how many of each?

OpenStudy (ny,ny):

9 string, 4 wind

OpenStudy (anonymous):

What about if the total was 26?

OpenStudy (ny,ny):

18 string, 8 wind?

OpenStudy (anonymous):

Excellent because 26 was 2 times the ratio total of 13. Now what will you multiply the ratio total of 13 by to make 91?

OpenStudy (ny,ny):

7

OpenStudy (anonymous):

Great, now how many of each instrument?

OpenStudy (ny,ny):

63 string, 28 wind?

OpenStudy (ny,ny):

i need tu write equationss.

OpenStudy (anonymous):

Try : Number of string = 9/13 x 91. Can you see where each of the numbers came from?

OpenStudy (ny,ny):

9 string over 13 (9 + 4) x 91 (whole) = string instruments

OpenStudy (ny,ny):

i got to use and define variables.

OpenStudy (anonymous):

Sorry, my brains not going that way at the moment. I don't know what is required.

OpenStudy (anonymous):

You've got me there!

OpenStudy (ny,ny):

awe D:

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