driving from Seattle to New Orleans.

Question

Carolyn drove at an average speed of mi/h from her home in Seattle to visit her sister in New Orleans. She stayed in New Orleans hours, and on the trip back averaged mi/h. She returned home hours after leaving. How many miles is Seattle from New Orleans?

a) Write an equation using the information as it is given above that can be solved to answer this question. Use as your variable to represent the amount of time Carolyn spent driving from Seattle to New Orleans. 

Answer 1

yu dont "driving tu Nu Orleens", yu drive tu Nu Orleens

total time=49 ours, inklued 15 ours in Nu Orleens

go time =49-15=34 ours

drive 40mph 1 wae, 55 mph on wae bak

want distans...

time=(d/40)+(d/55)=34 ours

55d +40d=34*40*55=74,800

95d=74800

d=787.3684211, or bout 787 miles

787/40=19.675 ours

787/55=14.309 ours

sum=33.984 ours