All categories

2 years ago

How long does it take for a train traveling 60.4 miles per hour to travel 81 miles?

Mathematics

1 answer:

Andreyy892 years ago

8 0

Distance ÷ Speed = Time

81 miles ÷ 60.4 miles per hour= 1.34 hours
1.34 hours ≈ 1 hour 20 min

You might be interested in

Country A has a growth rate of 3.4% per year. The population is currently 4,118,000, and the land area of Country A is 29,000

Eduardwww [97]

Answer:

time period is 260.57 years

Step-by-step explanation:

given data

growth rate = 3.4 % = 0.034

population = 4118000

area P = 29000000000 square yard

to find out

time period that one person for every square yard of land need

solution

we will apply here population growth formula that is

total population P = initial population × $e^{rt}$ ..............1

here r is rate of growth and t is time period and

we consider here initial population is current population

so put value in equation 1 to get t

29000000000 = 4118000 × $e^{0.034t}$

take ln both side

ln 7042.25 = ln $e^{0.034t}$

8.8596 = 0.034 t

t = 260.57

so time period is 260.57 years

7 0

2 years ago

Nadia is investigating rotations about the center of regular polygons that carry the regular polygon onto itself. She claims tha

GalinKa [24]

Answer:

$\theta_1 \ n\ \theta_2 = 120, 240$

Step-by-step explanation:

The question is incomplete, as the angles of rotation are not stated.

However, I will list the angles less than 360 degrees that will carry the hexagon and the nonagon onto itself

We have:

$Nonagon = 9\ sides$

$Hexagon = 6\ sides$

Divide 360 degrees by the number of sides in each angle, then find the multiples.

Nonagon

$\theta = \frac{360}{9} =40$

List the multiples of 40

$\theta_1 = 40, 80, 120, 160, 200, 240, 280, 320$

Hexagon

$\theta = \frac{360}{6} =60$

List the multiples of 60

$\theta_2 = 60, 120, 180, 240, 300$

List out the common angles

$\theta_1 = 40, 80, 120, 160, 200, 240, 280, 320$

$\theta_2 = 60, 120, 180, 240, 300$

$\theta_1 \ n\ \theta_2 = 120, 240$

This means that, only a rotation of $120, 240$ will lift both shapes onto themselves, when applied to both shapes.

The other angles will only work on one of the shapes, but not both at the same time.

7 0

2 years ago

Select all the possible ways to transform the letter V in a single transformation so that its point is up rather than down.

Alika [10]

I think that would be B,C....

6 0

2 years ago

Hey I hope this helps many people but how do you do this problem 5x=0.4

Scrat [10]

X=0.08 hope it helps love

4 0

2 years ago

Read 2 more answers

Help please!!! Which graph represents a system of equations with NO SOLUTION. Explain how you know.

ELEN [110]

Answer:graph B

Step-by-step explanation:because if a line is parallel they have no solutions with a certain slope

If two lines intersect then they must have at least a solution

7 0

2 years ago