Owen has already cycled 7 km this year plus he plan to cycle 1 km during each trip to work after 23 trips to work how many kilometers will owen have circled in total

Owen has cycled 30 km in total.

Step-by-step explanation:

Number of km already traveled = 7

he plan to cycle 1 km during each trip to work.

Number of trips to work =23

Hence,

Number of km traveled during trip to work = 1 km Number of trips to work =

Now Total km Owen had cycled is equal sum of Number of km already traveled and Number of km traveled during trip to work.

Total km Owen had cycled =

Hence Owen had cycled total of 30 km.

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".