From a rope 11m long two pieces of lengths 13/5m and 33/10m are cut off. What is the length the remaining rope?

m

Step-by-step explanation:

Given parameters:

  Length of rope = 11m

 First length cut off = m

  Second length cut off = m

Unknown:

Remaining length  = ?

Solution:

Let us find the total length cut off first;

       =     m   +  m

         =

          = m

So,

 Remaining length  = 11 -  

                                 =  

                                 = m

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.