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a taxi cab ride is $2.50 for the first 1/4 mile, and $0.40 for each additional 1/4 mile. How much would it cost to go 6/5 mile?

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1 Answer

1/4 mile = 0.25 mile
6/5 mile = 1.2 mile
 
we need to go 1.2 miles. If we divide 1.2 by 0.25 we get 4 as the quotient and 0.2 as the remainder. that is
 
1.2/0.25 = 4(0.25) + 0.2
 
there are 4 complete groups of 0.25 miles . The first 0.25 mile will cost $2.5 and all the remaining ones will cost $0.4. The remaining 0.2 miles should be charged as if it was for 0.25 miles
 
Cost = 2.5 + 3*0.4 + 1*0.4
Cost = 2.5 + 1.2 + 0.4  = $4.1