One car travels 270 miles in the same amount of time it takes a second car traveling 6 miles per hour slower than the first to go 234 miles. What are the speeds of the cars?
2 Answers
Feb 9, 2018
Car one speed is x, and car 2 speed is x-6
Both cars travel same amount of time. d= v x t so t= d/v
set the two times equal and solve for x
Explanation:
Feb 9, 2018
Explanation:
#"using the formula"#
#• " average speed (S)"="distance (D)"/"time (T)"#
#T" is a constant quantity here"#
#color(blue)"car 1"#
#S=270/TrArrST=270to(1)#
#color(blue)"car 2"#
#S-6=234/TrArrST-6T=234to(2)#
#"subtract "(2)-(1)#
#rArr6T=270-234=36#
#rArrT=36/6=6" hours"#
#rArrcolor(blue)"car 1"toS=270/6=45" mph"#
#rArrcolor(blue)"car 2 "toS=234/6=39" mph"#