anonymous
  • anonymous
The ratio of the number of apples to the number of oranges is 5:7. The ratio of the number of oranges to bananas is 8:9. There is a total of 3180 fruits. How many bananas are there? Please help!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
mutliply 8*9
retirEEd
  • retirEEd
Let A = apples, OR = oranges and B = Banana Write the ratio in proportional form (see diagram) Cross multiple, solve in terms of A = ??? OR and B = ??? OR Then substitute A and B into the sum of fruits equation A + OR + B =3180 and solve for OR (the math can get a bit tricky) Once you know OR, you can solve for B with equation B = ??? OR |dw:1449284493371:dw|
retirEEd
  • retirEEd
Eq 1 A = (5/7) OR Eq 2 B = (9/8) OR Eq 3 A + OR + B = 3180 Eq 4 (5/7) OR + OR + (9/8) OR = 3180 OR = ??? so now B = (9/8) times ???

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anonymous
  • anonymous
Thanks for your help...........that was easy to get with your help!

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