## gabbyalicorn one year ago A dog’s chew toy is a rubber ring with a circumference of 41 cm. What is the diameter of the chew toy, rounded to the nearest centimeter? Use 3.14 to approximate pi.

1. Michele_Laino

here we have to apply this formula: $D = \frac{C}{{3.14}} = \frac{{41}}{{3.14}} = ...cm$

2. gabbyalicorn

So, $3.14 \div 41 or 41 \div 3.14 ?$

3. Michele_Laino

it is 41 : 3.14=...

4. gabbyalicorn

so, ratios

5. Michele_Laino

yes!

6. gabbyalicorn

oh yay!

7. gabbyalicorn

then, simplify?

8. gabbyalicorn

Wait, no it can't be simplified

9. Michele_Laino

you have to divide 41 by 3.14, what do you get?

10. gabbyalicorn

13.0573248407

11. Michele_Laino

now you have to round off that number to the nearest unit

12. gabbyalicorn

13.1

13. gabbyalicorn

am i right? :D

14. Michele_Laino

the nearest unit I think is 13.0 cm

15. gabbyalicorn

Oh, sorry. My mistake..

16. gabbyalicorn

Thanks! :)

17. Michele_Laino

:)

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