Mei runs 91.08 miles in 3 weeks. If she runs 6 days each week, what is the average distance she runs each day?

5.1miles per day

Step-by-step explanation:

Given parameters:

Total distance run in 3 weeks  = 91.08miles

Unknown:

Average distance run each day = ?

Solution:

The number of days she ran  = 3 x 6  = 18days

  Average distance  =  

  Average distance =   = 5.1miles per day

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".

answer: idk

step-by-step explanation: