A truck driver averages 45 miles per hour while delivering freight and 60 miles per hour on the return trip. The total drive time is 7 hours. How long does each trip take?

pls send help a girl is struggling

delivering 180/45 = 4 hours and return trip 180/60 = 3 hours

Step-by-step explanation:

d = unknown number to calculate each trip

+ = 7

find common denominator (45 * 60 = 2700)

()*() +( )*() =7

+ =7

=7

= 7

105d = 7 * 2700

105d = 18,900

d = 18900/105

d = 180

delivering 180/45 = 4 hours

return trip 180/60 = 3 hours

first one is a: renaming a fraction. second one is c: de-c

step-by-step explanation:

my explanation is that these were the answers on edg : )

step-by-step explanation: