Aconstruction company builds a new rail line from town a to town b. they complete 1 1/4 miles in their first week of work and 1 2/3 miles in the second week. if they still have 25 3/4 left to build, what is the distance from town a to town b ?

The distance from Town A to Town B is 28²/₃ miles

Given:

1¹/₄ miles complete in the first week

1²/₃ miles complete in the second week

25³/₄ miles left to build

Question

What is the distance from Town A to Town B?

to calculate the distance between those two town:

There are two ways to solve this fraction additional

1. Change the mixed fraction to proper fraction

so the distance between Town A to Town B is 28²/₃ miles

The fraction above is in mixed fraction, first we can change them into proper fraction then add them. When the denominator is different we need  to find a common denominator to be able to add them.

The common denominator for 4 and 3 is 12.

2. Other way is mixed fraction additional

Additional that have sum of 10

Mixed fraction

Keywords: fraction, mixed fraction, additional fraction, distance between two town, proper fraction

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column