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A builder uses the rule "Multiply the number of trusses needed by 50 to get the length of a roof." If 8 trusses are needed to build a roof of length 400 inches and 10 trusses are need to build a roof of length 500 inches, how many trusses are needed to build a roof of length 250 inches?

A.
4 trusses

B.
5 trusses

C.
6 trusses

D.
7 trusses

2 Answers

5 votes
5 is correct I am college student
User OzzyCzech
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2 votes
B. (5 trusses)

Following the rule you need to multiply by 50 to get the length of the roof and 5 • 50 = 250
User Aaric Chen
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3.3k points