You drive from your home to a vacation resort 420 miles away. you return on the same highway. the average velocity on the return trip is 15 miles per hour slower than the average velocity on the outgoing trip. express the total time required to complete the round trip, t, as a function of the average velocity on the outgoing trip, x.

Step-by-step explanation:

Let average velocity of outgoing trip = x mph

The average velocity on the return trip is 15 miles per hour slower than the average velocity on the outgoing trip.

Average velocity of return trip = (x-15) mph

Distance to vacation place = 420 miles

Distance to vacation place = Time for outgoing trip x average velocity of outgoing trip

Distance to vacation place = Time for return trip x average velocity of return trip

We have total time T = t₁ + t₂

That is

Time required to complete the round trip where x is average velocity on the outgoing trip.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: