Use back-substitution to solve.
...
Answers: 2
Mathematics, 21.06.2019 15:00
Asmall foreign car gete 42 miles per gallon and user 35 gallons on a trip.gasoline costs $1.05 per gallon.what was the cost of gasoline per mile driver?
Answers: 3
Health, 21.09.2019 20:10
Mathematics, 21.09.2019 20:10
English, 21.09.2019 20:10
Computers and Technology, 21.09.2019 20:10
Mathematics, 21.09.2019 20:10
Biology, 21.09.2019 20:10
English, 21.09.2019 20:10
Health, 21.09.2019 20:10
Mathematics, 21.09.2019 20:10
Social Studies, 21.09.2019 20:10
Biology, 21.09.2019 20:10
English, 21.09.2019 20:10