Homework Help: Algebra Grade 7

Posted by randomchik on Thursday, October 4, 2012 at 3:38pm.

What would be the scale factor if an airplane is 87 feet long; 2 inches = 15 feet

Algebra Grade 7 - Ms. Sue, Thursday, October 4, 2012 at 4:27pm
Set up a proportion, cross multiply and solve for x.

2/15 = x/87

15x = 174

x = 11.6 inches

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