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October 20, 2014

October 20, 2014

Posted by **Dell** on Tuesday, December 6, 2011 at 11:20am.

a.What is the ratio of blue buttons to purple buttons at the beginning of the year?

b.After Marnie adds another 200 buttons –some red and some blue – at the end of the year, the number of red buttons increased by 75% and the number of blue buttons increased by two-thirds.

i.What is the new ratio of red buttons to blue buttons?

ii.Express the number of purple buttons as a fraction of the new total number of buttons.

iii.Express the number of blue buttons as a percentage of the number of red buttons. (Round to one decimal place).

- NEED HELP drawing a visual for this question -
**Ann**, Tuesday, January 24, 2012 at 12:13pmred-blue-purple = 4-3-2. red =160; blue = 120; purple -= 80.

New total 560. Red has increased from 160 to (add 75% = 120) 280. Extra blue is 200 - 120 = 80. Total blue = 120 + 80 = 200.

Blue as percentage of red = (200/280)x100 = 71.4%

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