A hiker started on a trail at 150 feet below sea level. She finished her day at the top of a hill 351 feet above sea level. What is the vertical distance between 150 feet below sea level and 351 feet above sea level?

I think the answer is 501 ft

Step-by-step explanation:

I added 150 + 351.

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".

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