The ratio of red pens to blue pens in a box was 3 : 20. 35% of the blue pens were removed and replaced with an equal number of red pens as the number of removed blue pens. If there were still 216 more blue pens than red pens after the exchange, how many red pens were added into the box?
The ratio of red pens to blue pens in a box was 3 : 20. 35% of the blue pens were removed and replaced with an equal number of red pens as the number of removed blue pens. If there were still 216 more blue pens than red pens after the exchange, how many red pens were added into the box?
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter8: Introduction To Functions
Section8.10: Inverse Variation
Problem 8E
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The ratio of red pens to blue pens in a box was 3 : 20.
35% of the blue pens were removed and replaced with an equal number of red pens as the number of removed blue pens. If there were still 216 more blue pens than red pens after the exchange, how many red pens were added into the box?
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