Distance-rate-time two knights are about to engage in a jousting match. their standing 1000 feet apart on horses naturally knight 1 can ride at the speed that is 4 ft per second faster than knight 2 if they start at the same time and clash exactly 10 seconds later how fast must each kind travel -math problem

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".

unless if u could do my questions, if not i wouldn't want to

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step-by-step explanation: