Posted by **Ella** on Wednesday, August 11, 2010 at 10:22pm.

Consider the following students method of solving the proportion 8/5 = 20/x and determine whether the methods were correct: Richie: First I divided 20 by 8 and got 2 1/2. Then I multiplied 2 1/2 by 5 and got 12 1/2 for my answer. Martha: I think of it this way. Every time a person takes 8 steps, another person takes 5 steps. So 16 steps correspond to 10 steps, and 24 steps correspond to 15 steps. As 20 is halfway bwtween 10 and 15. I got 12 1/2 for the answer. Explain your reasoning.

## Answer this Question

## Related Questions

- Math, check my answer. thanks - Consider the following students’ methods of ...
- Pre-Algebra - I need to check my work... estimate the following products or ...
- math - To solve 3/4 divided by 2/5, Elisha writes, 3/4 divided by 2/5 is the ...
- algebra - Systems of equations can be solved by graphing or by using ...
- Science - Writeacher, can you ask a science teacher to help me with my ...
- chem - The diameter of a neutral neon atom is about 1.4 multiplied by 102 pm. ...
- Math - Explain which method you would use to determine whether the following ...
- Math - I do not understand how to decide which method would you use to determine...
- algebra - Explain the difference between solving a system of equations by the ...
- English/Science - I really need your help to determine if the following ...

More Related Questions