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April 20, 2014

April 20, 2014

Posted by **Dottie** on Thursday, September 20, 2012 at 9:49am.

a. How many foreign stamps did Salina have?

b. How many local stamps did Salina have in the end?

- Ratio and Proportions -
**Steve**, Thursday, September 20, 2012 at 11:57amusing d for domestic and f for foreign,

d/f = 3/4

(d+21)/f = 9/8

42 local stamps

56 foreign stamps

check: 42/56 = 3/4

63/56 = 9/8

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