Unit 43b problems with  answers from http://www.textbooksfree.org/
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Unit 43 Word Problems Using Algebra and Geometry
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3) John wants to tie a rope across a river. He drew these similar triangles to determine the river's width. Find its width.

 

 

 

 







4) Kathy is 7 times the age of her daughter Jane. In 8 years she will be three time as old. Find Mary's age.

Time Jane Mary

Now





Future