Bob drove 120 miles on his vacation. He drove an average of 1.2 times faster on the second 60 miles of his trip than he did on the first 60 miles of his trip. Which expression represents the time he spent driving? Let x = his speed on the first half of the trip. (1 point)

Question

Bob drove 120 miles on his vacation. He drove an average of 1.2 times faster on the second 60 miles of his trip than he did on the first 60 miles of his trip. Which expression represents the time he spent driving? Let x = his speed on the first half of the trip.  (1 point)

anonymous · Answer

A. 110/x
B. 120/x
C.132x
D.132/x

anonymous · Answer

time taken to cover first 60 miles=60/x
time taken to cover next 60 miles=60/1.2x=(60*10)/12x=50/x
total time taken 60/x+50/x=?

anonymous · Answer

110/x ?

anonymous · Answer

correct.

anonymous · Answer

thanks can you help me with 1 more its a word problem

anonymous · Answer

A custom T-shirt company charges a $200.00 set up fee and $5.00 per T-shirt. Approximately how many T-shirts must be produced so that the total cost per T-shirt is $5.33?  (1 point)

    1,000 t-shirts
    200 t-shirts
    600 t-shirts
    1,266 t-shirts

anonymous · Answer

i will try to solve it.

anonymous · Answer

200+5x=5.33x
5.33x-5x=200
.33x=200
x=200/.33=606
as the rate is approximately $5 so required T-shirts=600

anonymous · Answer

okay i understand now thank you so muchhh ( :

anonymous · Answer

yw