MTH 120 - Ratios &amp; Proportions

# MTH 120 - Ratios & Proportions - ) (9) ( ) 11 3 3 2 ( )...

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Section 4.1 41. (p. 190) A certain school has 40 freshman, 30 sophomores, 15 juniors, and 10 seniors. a. What is the ratio of sophomores to freshmen? b. What is the ratio of seniors to freshmen?

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Section 4.2 41. (p. 196) Solve the proportion. 9 y 1 3 2 3 1 2 =
Section 4.2 41. (p. 196) Solve the proportion. 9 y 1 3 2 3 1 2 =

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Section 4.2 41. (p. 196) Solve the proportion. 9 y 1 3 2 3 1 2 = = (y) (1 ) 1 2 (9) (3 ) 2 3 = (y) (
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Unformatted text preview: ) (9) ( ) 11 3 3 2 ( ) 2 3 ( ) 2 3 = (y) ( ) (9) ( ) 11 3 3 2 ( ) 2 3 ( ) 2 3 22 = y → y = 22 = (y) ( ) 3 2 (9) ( ) 11 3 Section 4.2 41. (p. 196) Solve the proportion. 9 y 1 3 2 3 1 2 = = (y) (1 ) 1 2 (9) (3 ) 2 3 y = 22 2 ÷ 3 × 11 ÷ 3 × 9 = … 22 = (y) ( ) (9) ( ) 11 3 3 2 ( ) 2 3 ( ) 2 3 = (y) ( ) 3 2 (9) ( ) 11 3...
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## This note was uploaded on 02/29/2012 for the course MATH 120 taught by Professor Adjunct during the Fall '11 term at Northern Virginia Community College.

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MTH 120 - Ratios & Proportions - ) (9) ( ) 11 3 3 2 ( )...

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