Question

For one mile, Percy travels at an average speed of one mile an
hour. For the subsequent mile he travels at an average speed of two
miles an hour. He continues this upward trend, for each subsequent
mile he increases his average speed from the previous mile by one
mile per hour. Let k be the smallest integer such that after
traveling for k miles, Percy’s average speed from the beginning of
the trip is greater than 2 miles an hour. What is k? Express
Percy's average speed for this value of k as a fraction in lowest
terms.

Please explain step by step

Answer #1

A truck driver travels at an average speed of 75 miles per hour
on a 210-mile trip to pick up a load of freight. On the return trip
(with the truck fully loaded), the average speed is 65 miles per
hour. What is the average speed for the round trip? (Round your
answer to one decimal place.)
answer: _________ mph

Mark averaged 60 miles per hour during the 30-mile trip to
college. Because of heavy traffic he was able to average only 30
miles per hour during the return trip. What was Mark's average
speed for the round trip?

Mark averaged 60 miles per hour during the 30-mile trip to
college. Because of heavy traffic he was able to average only 20
miles per hour during the return trip. What was Mark's average
speed for the round trip?

1. It is advertised that the average braking distance for a
small car traveling at 65 miles per hour equals 120 feet. A
transportation researcher wants to determine if the statement made
in the advertisement is false. She randomly test drives 36 small
cars at 65 miles per hour and records the braking distance. The
sample average braking distance is computed as 114 feet. Assume
that the population standard deviation is 22 feet. a. H0: average
breaking distance for small...

1.If a car's speedometer indicates a
constant speed of 30 miles per hour, can it be
say that the car is not accelerating?
2. Describe an example of something that has constant speed and at
the same time a
variable speed. Can you describe an example of something that has a
constant speed
and variable speed? Sustain your answers.
3.Describe an example of a
body experiencing acceleration when traveling rapidly
constant. Is it possible to describe an example of a...

can someome answer these please?
A runner jogs one lap around the track that encircles a
football field (and, if it were me, would immediately collapse). If
she ends where she began, and the distance is one-quarter mile,
what is the displacement of the jogger?
A rocket is fired from the launch pad, obtaining a speed of
650 m/s in 7.0 seconds. What is the average acceleration of the
rocket? Round to the nearest integer.
A coyote, closely related to...

1.A light day is the distance light travels in one day.
The planet Neptune is 4.5 x 1012 m from the Sun. Which
of these is the approximate distance between the Sun and Neptune in
light days?
2.The rms value of the magnetic field in an electromagnetic wave
is 3.7 x 10-5 T. Calculate the maximum value of the
electric field in the wave.
3.A light bulb emits light uniformly in all directions. At a
distance of 0.6 meters from...

One cubic centimeter of a typical cumulus cloud contains 430
water drops, which have a typical radius of 10 μm.
(a) How many cubic meters of water are in a
cylindrical cumulus cloud of height 3.1 km and radius 1.1 km?
(b) How many 1-liter pop bottles would that water
fill? (c) Water has a density of 1000
kg/m3. How much mass does the water in the cloud
have?
Water is poured into a container that has a leak. The...

do all five questions
Question 1
20 pts
Ignoring the effects of air resistance, if a ball falls freely
toward the ground, its total mechanical energy
Group of answer choices
increases
remains the same
not enough information
decreases
Flag this Question
Question 2
20 pts
A child jumps off a wall from an initial height of 16.4 m and lands
on a trampoline. Before the child springs back up into the air the
trampoline compresses 1.8 meters. The spring constant...

MATHEMATICS
1. The measure of location which is the most likely to
be
influenced by extreme values in the data set is the a. range
b.
median c. mode d. mean
2. If two events are independent, then a. they must be
mutually
exclusive b. the sum of their probabilities must be equal to one
c.
their intersection must be zero d. None of these alternatives
is
correct. any value between 0 to 1
3. Two events, A and B,...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 47 minutes ago

asked 50 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 3 hours ago