Ask question

Ask question

All categories

2 years ago

8

How long will it take a passenger train traveling at 160 miles per hour to travel from Denver, Colorado to Lincoln, Nebraska? Th

e distance between the two cities is 488 miles

1 answer:

Vsevolod [243]2 years ago

4 0

Set up a proportion
$\frac{160 mi}{1hr} = \frac{488mi}{X hrs} 

So you multiply 488*1=488
Then 488/160=3.05 hours.

:)$

You might be interested in

How do you find the sum of cube ?

SIZIF [17.4K]

Answer:

$(2x+5)(4x^{2} -10x+25)=0$

Step-by-step explanation:

Given:

The given equation is.

$8x^{3} +125=0$

Find the some of cube.

Solution:

$8x^{3} +125=0$

$2^{3}x^{3} +5^{3}=0$

$(2x)^{3} +5^{3}=0$ ----------(1)

The sum of the cube formula is given below.

$(a^{3} +b^{3})=(a+b)(a^{2} -ab+b^{2} )$ -----------(2)

By comparing equation 1 and equation 2

$a=2x, b=5$

substitute a and b value in equation 2

$((2x)^{3} +5^{3})=(2x+5)((2x)^{2} -(2x)(5)+5^{2})$

$((2x)^{3} +5^{3})=(2x+5)(4x^{2} -(10x)+25)$

$((2x)^{3} +5^{3})=(2x+5)(4x^{2} -10x+25)$

Therefore the sum of the cube $(2x+5)(4x^{2} -10x+25)=0$

4 0

3 years ago

Dade County Public Schools

deff fn [24]

Thirty-four thousandths

4 0

3 years ago

A company established in the year 2013. The net profit of the company in the year

Vera_Pavlovna [14]

Answer:

edi wow

Step-by-step explanation:

bwiset ka hahaha

4 0

2 years ago

Which identify could be used to rewrite the expression x6-27

hammer [34]

The differnce of 2 perfect cubes

remember
a³-b³=(a-b)(a²+ab+b²)

so
$(x^2)^3-(3)^3=(x^2-3)(x^2+3x+9)$

3 0

2 years ago

Mr. Tindell divided a 6th grade class Of 80 students an into equal groups the number of students in each group was a prime numbe

zubka84 [21]

Answer:

He made 16 groups which means 5 Students in each group

Step-by-step explanation:

Because 80 divided by 16 is 5 and 5 is a prime number

3 0

3 years ago