Aconstruction crew has just finished building a road. the road is 12 kilometers long .if the crew worked for 5 2/5 days, how many kilometers of road did they build each day?

The build 2 kilometers each day

Step-by-step explanation:

Set up an equation

The road is 12 kilometers long and it was worked on for 5 days.

So, to set up the equation, divide 12 by 5

 Make 5 into an improper fraction

Multiply 5 by 5, then add 2

You can't divide a number by a fraction, so you kcf (keep it, change it, flip it)

So keep the 12, change the division to multiplication, flip

12 x Multiply straight across

x =

Simplify

=  The top and the bottom both have 3 in common

Then make into a mixed number

2 9 goes into 20 2 times and has a remainder of 2

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

ddd

step-by-step explanation: